Feeding and mating-behavior of pollen beetles (meligethes-aeneus fab) and seed weevils (ceutorhynchus-assimilis payk) on oil-seed rape (brassica-napus l)

Williams, I. H. and Free, J. B. 1978. Feeding and mating-behavior of pollen beetles (meligethes-aeneus fab) and seed weevils (ceutorhynchus-assimilis payk) on oil-seed rape (brassica-napus l). The Journal of Agricultural Science. 91 (OCT), pp. 453-459.

Related outputs

Distribution of Meligethes aeneus (F.) and M. viridescens (F.) on cruciferous plants

A - Papers appearing in refereed journals

Metspalu, L., Williams, I. H., Jogar, K., Ploomi, A., Hiiesaar, K., Laaniste, P., Svilponis, E., Mand, M. and Luik, A. 2011. Distribution of Meligethes aeneus (F.) and M. viridescens (F.) on cruciferous plants. Zemdirbyste-Agriculture. 98, pp. 27-34.

Biocontrol-based integrated management of oilseed rape pests

E - Books edited/written by staff member, alone/with others

Williams, I. H. 2010. Biocontrol-based integrated management of oilseed rape pests. Springer Berlin.

Oilseed rape crop ecology: optimising crop husbandry for conservation biological control and greater biodiversity. Final report on DEFRA project AR0316.

D1 - Technical reports: non-confidential

Ferguson, A. W., Williams, I. H., Cook, S. M., Clark, S. J., Frearson, D. J. T., Holdgate, R., Isger, E. A., Mason, N. S., Watts, N. P. and Todd, A. 2008. Oilseed rape crop ecology: optimising crop husbandry for conservation biological control and greater biodiversity. Final report on DEFRA project AR0316. Department for Environment, Food & Rural Affairs (DEFRA).

Phenologies and diel periodicities of within-crop flight by pests and parasitoids in oilseed rape

C2 - Non-edited contributions to conferences

Ferguson, A. W., Holdgate, R., Mason, N. S., Clark, S. J. and Williams, I. H. 2008. Phenologies and diel periodicities of within-crop flight by pests and parasitoids in oilseed rape. Abstracts IOBC-WPRS, OILB-SROP, Working Group on Integrated Control in Oilseed Crops, Paris, 29 September - 1 October 2008 . pp. 16

Implications for conservation biocontrol of spatio-temporal relationships between carabid beetles and coleopterous pests in winter oilseed rape

A - Papers appearing in refereed journals

Warner, D. J., Allen-Williams, L. J., Warrington, S., Ferguson, A. W. and Williams, I. H. 2008. Implications for conservation biocontrol of spatio-temporal relationships between carabid beetles and coleopterous pests in winter oilseed rape. Agricultural and Forest Entomology. 10 (4), pp. 375-387.

Do cropping system and insecticide use in spring oilseed rape affect the abundance of pollen beetles (Meligethes aeneus Fab.) on the crop?

A - Papers appearing in refereed journals

Veromann, E., Kevvai, R., Luik, A. and Williams, I. H. 2008. Do cropping system and insecticide use in spring oilseed rape affect the abundance of pollen beetles (Meligethes aeneus Fab.) on the crop? International Journal of Pest Management. 54, pp. 1-4.

Migration to and dispersal from oilseed rape by the pollen beetle, Meligethes aeneus , in relation to wind direction

A - Papers appearing in refereed journals

Williams, I. H., Frearson, D. J. T., Barari, H. and McCartney, H. A. 2007. Migration to and dispersal from oilseed rape by the pollen beetle, Meligethes aeneus , in relation to wind direction. Agricultural and Forest Entomology. 9 (4), pp. 279-286.

Non-inversion tillage to conserve functional biodiversity for biocontrol of oilseed rape pests

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Holdgate, R., Mason, N. S., Clark, S. J. and Williams, I. H. 2007. Non-inversion tillage to conserve functional biodiversity for biocontrol of oilseed rape pests. Proceedings 16th International Plant Protection Congress, Glasgow, 15-18 October 2007 . pp. 818-819

The influence of tillage on biocontrol agents of oilseed rape pests

C2 - Non-edited contributions to conferences

Ferguson, A. W., Holdgate, R., Mason, N. S., Clark, S. J. and Williams, I. H. 2007. The influence of tillage on biocontrol agents of oilseed rape pests. Abstracts Royal Entomological Society National Meeting (Ento 07), Edinburgh, 16-18 July 2007 . pp. 24

The effect [of] host plant characters on parasitism of inflorescence pests of oilseed rape

C2 - Non-edited contributions to conferences

Ferguson, A. W., Frearson, D. J. T., Mason, N. S., Todd, A. D., Clark, S. J. and Williams, I. H. 2007. The effect [of] host plant characters on parasitism of inflorescence pests of oilseed rape. Abstracts Royal Entomological Society National Meeting (Ento 07), Edinburgh, 16-18 July 2007 . pp. 18

The use of pollen cues by free-flying honey bees (Apis mellifera)

C2 - Non-edited contributions to conferences

Cook, S. M., Poppy, G. M. and Williams, I. H. 2007. The use of pollen cues by free-flying honey bees (Apis mellifera). Abstracts 13th Symposium on Insect-Plant Relationships (SIP13), Uppsala, 29 July-2 August 2007 . pp. 152

First field evidence that parasitoids use upwind anemotaxis for host-habitat location

A - Papers appearing in refereed journals

Williams, I. H., Frearson, D. J. T., Barari, H. and McCartney, H. A. 2007. First field evidence that parasitoids use upwind anemotaxis for host-habitat location. Entomologia Experimentalis et Applicata. 123 (3), pp. 299-307.

Behavioural and chemical ecology underlying the success of turnip rape (Brassica rapa) trap crops in protecting oilseed rape (Brassica napus) from the pollen beetle (Meligethes aeneus)

A - Papers appearing in refereed journals

Cook, S. M., Rasmussen, H. B., Birkett, M. A., Murray, D. A., Pye, B. J., Watts, N. P. and Williams, I. H. 2007. Behavioural and chemical ecology underlying the success of turnip rape (Brassica rapa) trap crops in protecting oilseed rape (Brassica napus) from the pollen beetle (Meligethes aeneus). Arthropod-Plant Interactions. 1, pp. 57-67.

Honey bees can disseminate a microbial control agent to more than one inflorescence pest of oilseed rape

A - Papers appearing in refereed journals

Carreck, N. L., Butt, T. M., Clark, S. J., Ibrahim, L., Isger, E. A., Pell, J. K. and Williams, I. H. 2007. Honey bees can disseminate a microbial control agent to more than one inflorescence pest of oilseed rape. Biocontrol Science and Technology. 17, pp. 179-191.

The influence of petals on numbers of pests and their parasitoids in oilseed rape

C1 - Edited contributions to conferences/learned societies

Frearson, D. J. T., Ferguson, A. W., Laugier, N. and Williams, I. H. 2006. The influence of petals on numbers of pests and their parasitoids in oilseed rape. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Responses of pollen beetles (Meligethes aeneus) to petal colour

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Skellern, M. P., Smith, M. J. and Williams, I. H. 2006. Responses of pollen beetles (Meligethes aeneus) to petal colour.

Determining the sex of insect pests of oilseed rape for behavioural bioassays

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Watts, N. P., Castle, L. M. and Williams, I. H. 2006. Determining the sex of insect pests of oilseed rape for behavioural bioassays.

Responses of pollen beetles (Meligethes aeneus) to conspecific odours

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Murray, D. A., Watts, N. P. and Williams, I. H. 2006. Responses of pollen beetles (Meligethes aeneus) to conspecific odours.

The EU project MASTER (MAnagement STrategies for European Rape pests): an update

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2006. The EU project MASTER (MAnagement STrategies for European Rape pests): an update.

Upwind anemotaxis by the parasitoid Tersilochus obscurator (Hym., Ichneumonidae) on its migration flights to winter oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Barari, H. and Frearson, D. J. T. 2006. Upwind anemotaxis by the parasitoid Tersilochus obscurator (Hym., Ichneumonidae) on its migration flights to winter oilseed rape.

Spatial relationships between carabids and pest larvae in a winter oilseed rape crop

C1 - Edited contributions to conferences/learned societies

Warner, D. J., Allen-Williams, L. J., Ferguson, A. W. and Williams, I. H. 2006. Spatial relationships between carabids and pest larvae in a winter oilseed rape crop. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 .

The effect of soil tillage on summer predator activity in a winter oilseed rape crop

C1 - Edited contributions to conferences/learned societies

Mason, N. S., Ferguson, A. W., Holdgate, R., Clark, S. J. and Williams, I. H. 2006. The effect of soil tillage on summer predator activity in a winter oilseed rape crop. Proceedings International Symposium on Integrated Pest Management, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

The diel periodicity of within-crop flight by key parasitoids of oilseed rape pests

C1 - Edited contributions to conferences/learned societies

Holdgate, R., Ferguson, A. W., Mason, N. S., Clark, S. J. and Williams, I. H. 2006. The diel periodicity of within-crop flight by key parasitoids of oilseed rape pests. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Insect problems in European oilseed rape cultivation, and how to deal with them: the OSR farmers' perspective

C1 - Edited contributions to conferences/learned societies

Menzler-Hokkanen, I., Hokkanen, H. M. T., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Insect problems in European oilseed rape cultivation, and how to deal with them: the OSR farmers' perspective.

Pollen availability and the distribution of pollen beetles and seed weevils in oilseed rape

C1 - Edited contributions to conferences/learned societies

Frearson, D. J. T., Ferguson, A. W., Campbell, J. M. and Williams, I. H. 2006. Pollen availability and the distribution of pollen beetles and seed weevils in oilseed rape. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

The use of DNA, morphometric and ecological data to distinguish ichneumonid parasitoids of two stem-mining pests of winter oilseed rape

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Barari, H., Piper, R. W., Smith, E. and Williams, I. H. 2006. The use of DNA, morphometric and ecological data to distinguish ichneumonid parasitoids of two stem-mining pests of winter oilseed rape. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Relationships between insect pests and their parasitoids in a winter oilseed rape crop

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Campbell, J. M., Barari, H., Warner, D. J., Watts, N. P. and Williams, I. H. 2006. Relationships between insect pests and their parasitoids in a winter oilseed rape crop. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Moglichkeiten der integrierten Kontrolle von Rapsschadlingen in der Praxis - Ergebnisse einer Umfrage im Rahmen des EU-Projektes MASTER

C2 - Non-edited contributions to conferences

Ulber, B., Buchs, W., Hokkanen, H., Menzler-Hokkanen, I., Klukowski, Z., Luik, A., Nilsson, C. and Williams, I. H. 2006. Moglichkeiten der integrierten Kontrolle von Rapsschadlingen in der Praxis - Ergebnisse einer Umfrage im Rahmen des EU-Projektes MASTER.

Comment on the proposed conservation of the specific name of Curculio assimilis Paykull, 1792 (currently Ceutorhynchus assimilis; Insecta, Coleoptera)

G - Articles in popular magazines and other technical publications

Williams, I. H. 2006. Comment on the proposed conservation of the specific name of Curculio assimilis Paykull, 1792 (currently Ceutorhynchus assimilis; Insecta, Coleoptera). Bulletin of Zoological Nomenclature. 63, pp. 272-273.

Key pests and their parasitoids on spring and winter oilseed rape in Estonia

A - Papers appearing in refereed journals

Veromann, E., Luik, A., Metspalu, L. and Williams, I. H. 2006. Key pests and their parasitoids on spring and winter oilseed rape in Estonia. Entomologica fennica. 17, pp. 400-404.

Working Group Integrated Control in Oilseed Crops (1979-present)

C1 - Edited contributions to conferences/learned societies

Koopmann, B., Cook, S. M., Williams, I. H. and Paul, V. H. 2006. Working Group Integrated Control in Oilseed Crops (1979-present). Boller, E. F., Delucchi, V. and Vanlenteren, J. C. (ed.) International Organization for Biological Control of Noxious Animals and Plants: history of the first 50 years . IOBC/OILB, Dijon. pp. 241-243

A new method for electrophysiological identification of antennal pH receptor cells in ground beetles: the example of Pterostichus aethiops (Panzer,1796) (Coleoptera, Carabidae)

A - Papers appearing in refereed journals

Milius, M., Merivee, E., Williams, I. H., Luik, A., Mand, M. and Must, A. 2006. A new method for electrophysiological identification of antennal pH receptor cells in ground beetles: the example of Pterostichus aethiops (Panzer,1796) (Coleoptera, Carabidae). Journal of Insect Physiology. 52, pp. 960-967.

Integrating parasitoids into management of pollen beetle on oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2006. Integrating parasitoids into management of pollen beetle on oilseed rape. Faculty of Agronomy, Estonian Agricultural University.

Natural occurrence of pathogens of oilseed rape pests in agricultural fields in Europe

C1 - Edited contributions to conferences/learned societies

Zec-Vojinovic, M., Hokkanen, H. M. T., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Natural occurrence of pathogens of oilseed rape pests in agricultural fields in Europe. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Integrating biological control within IPM for winter oilseed rape in Europe: an overview of the MASTER project

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2006. Integrating biological control within IPM for winter oilseed rape in Europe: an overview of the MASTER project. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Bee-mediated infection of inflorescence pests of oilseed rape by the entomopathogenic fungus Metarhizium anisopliae

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Butt, T. M., Carreck, N. L., Clark, S. J., Ibrahim, L., Isger, E. A. and Pell, J. K. 2006. Bee-mediated infection of inflorescence pests of oilseed rape by the entomopathogenic fungus Metarhizium anisopliae. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Insect pests and their natural enemies on spring oilseed rape in Estonia: impact of cropping systems

A - Papers appearing in refereed journals

Veromann, E., Tarang, T., Kevvai, R., Luik, A. and Williams, I. H. 2006. Insect pests and their natural enemies on spring oilseed rape in Estonia: impact of cropping systems. Agricultural and Food Science. 15, pp. 61-72.

Wind direction and the direction of flights of parasitoids to oilseed rape: implications for IPM

C2 - Non-edited contributions to conferences

Williams, I. H., Barari, H., Frearson, D. J. T. and McCartney, H. A. 2006. Wind direction and the direction of flights of parasitoids to oilseed rape: implications for IPM. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Identity of parasitoids and their potential for biocontrol of oilseed rape pests in Europe

C2 - Non-edited contributions to conferences

Ulber, B., Fischer, K., Klukowski, Z., Luik, A., Veromann, E., Nilsson, C., Ahman, B., Williams, I. H., Ferguson, A. W., Piper, R. and Barari, H. 2006. Identity of parasitoids and their potential for biocontrol of oilseed rape pests in Europe. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Evaluation of farming systems to enhance biological control in oilseed rape

C2 - Non-edited contributions to conferences

Nilsson, C., Buchs, W., Hokkanen, H. M. T., Menzler-Hokkanen, I., Klukowski, Z., Luik, A., Ulber, B. and Williams, I. H. 2006. Evaluation of farming systems to enhance biological control in oilseed rape. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Effects of post-harvest soil tillage on the survival of key parasitoids of oilseed rape pests

C2 - Non-edited contributions to conferences

Nilsson, C., Ulber, B., Williams, I. H., Ferguson, A. W. and Klukowski, Z. 2006. Effects of post-harvest soil tillage on the survival of key parasitoids of oilseed rape pests. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Pest problems in oilseed rape and how to deal with them: the farmers' perspective

C2 - Non-edited contributions to conferences

Menzler-Hokkanen, I., Hokkanen, H. M. T., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Pest problems in oilseed rape and how to deal with them: the farmers' perspective. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Implementation of IPM stratgeies: constraints and motivations to change farming practices

C2 - Non-edited contributions to conferences

Menzler-Hokkanen, I., Hokkanen, H. M. T., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Implementation of IPM stratgeies: constraints and motivations to change farming practices. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Oilseed rape growers' knowledge of and attitudes towards IPM

C2 - Non-edited contributions to conferences

Menzler-Hokkanen, I., Hokkanen, H. M. T., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Oilseed rape growers' knowledge of and attitudes towards IPM. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

MASTER: construction of phenological models of key parasitoids in Europe and propsects for spray windows compatible with their conservation in winter oilseed rape

C2 - Non-edited contributions to conferences

Johnen, A., Williams, I. H., Ferguson, A. W., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C. and Ulber, B. 2006. MASTER: construction of phenological models of key parasitoids in Europe and propsects for spray windows compatible with their conservation in winter oilseed rape. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

MASTER: validation of existing phenological models of the proPlant DSS for key pests in winter oilseed rape in different climatic areas in Europe and prospects for IPM

C2 - Non-edited contributions to conferences

Johnen, A., Williams, I. H., Ferguson, A. W., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C. and Ulber, B. 2006. MASTER: validation of existing phenological models of the proPlant DSS for key pests in winter oilseed rape in different climatic areas in Europe and prospects for IPM. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Effectiveness of entomopathogenic nematodes in the control of oilseed rape pests

C2 - Non-edited contributions to conferences

Hokkanen, H. M. T., Zec-Vojinovic, M., Husberg, G-B., Menzler-Hokkanen, I., Buchs, W., Klukowski, Z., Luik, A., Nilsson, C., Ulber, B. and Williams, I. H. 2006. Effectiveness of entomopathogenic nematodes in the control of oilseed rape pests. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Key predator species in oilseed rape crops - a review of literature and MASTER results

C2 - Non-edited contributions to conferences

Buchs, W., Felsmann, D. S., Klukowski, Z., Luik, A., Nilsson, C., Ahmed, B., Ulber, B. and Williams, I. H. 2006. Key predator species in oilseed rape crops - a review of literature and MASTER results. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 . British Crop Protection Council (BCPC). pp. on CD-ROM

Regular periods of abdominal contractions recorded from larvae of the bumblebee, Bombus terrestris (Hymenoptera: Apidae)

A - Papers appearing in refereed journals

Mand, M., Kuusik, A., Martin, A-J., Williams, I. H., Luik, A., Karise, R., Metspalu, L. and Hiiesaar, K. 2006. Regular periods of abdominal contractions recorded from larvae of the bumblebee, Bombus terrestris (Hymenoptera: Apidae). European Journal of Entomology. 103, pp. 319-322.

Exploitation of host plant preferences in pest management strategies for oilseed rape (Brassica napus)

A - Papers appearing in refereed journals

Cook, S. M., Smart, L. E., Martin, J. L., Murray, D. A., Watts, N. P. and Williams, I. H. 2006. Exploitation of host plant preferences in pest management strategies for oilseed rape (Brassica napus). Entomologia Experimentalis et Applicata. 119 (3), pp. 221-229.

Distributions and interactions of the stem miners Psylliodes chrysocephala and Ceutorhynchus pallidactylus and their parasitoids in a crop of winter oilseed rape (Brassica napus)

A - Papers appearing in refereed journals

Ferguson, A. W., Barari, H., Warner, D. J., Campbell, J. M., Smith, E. T., Watts, N. P. and Williams, I. H. 2006. Distributions and interactions of the stem miners Psylliodes chrysocephala and Ceutorhynchus pallidactylus and their parasitoids in a crop of winter oilseed rape (Brassica napus). Entomologia Experimentalis et Applicata. 119 (2), pp. 81-92.

Development of a push-pull strategy for control of oilseed rape pests

C2 - Non-edited contributions to conferences

Cook, S. M., Smart, L. E., Skellern, M. P., Watts, N. P. and Williams, I. H. 2006. Development of a push-pull strategy for control of oilseed rape pests. Proceedings International Symposium on Integrated Pest Management in Oilseed Rape, Gottingen, 3-5 April 2006 .

The spatial dynamics of pollen beetles in relation to inflorescence growth stage of oilseed rape: implications for trap crop strategies

A - Papers appearing in refereed journals

Frearson, D. J. T., Ferguson, A. W., Campbell, J. M. and Williams, I. H. 2005. The spatial dynamics of pollen beetles in relation to inflorescence growth stage of oilseed rape: implications for trap crop strategies. Entomologia Experimentalis et Applicata. 116 (1), pp. 21-29.

The separation of two hymenopteran parasitoids, Tersilochus obscurator and Tersilochus microgaster (Ichneumonidae), of stem-mining pests of winter oilseed rape using DNA, morphometric and ecological data

A - Papers appearing in refereed journals

Barari, H., Ferguson, A. W., Piper, R. W., Smith, E., Quicke, D. L. J. and Williams, I. H. 2005. The separation of two hymenopteran parasitoids, Tersilochus obscurator and Tersilochus microgaster (Ichneumonidae), of stem-mining pests of winter oilseed rape using DNA, morphometric and ecological data. Bulletin of Entomological Research. 95, pp. 299-307.

MASTER - integrating biological control within IPM for winter oilseed rape across Europe

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Buchs, W., Hokkanen, H., Menzler-Hokkanen, I., Johnen, A., Klukowski, Z., Luik, A., Nilsson, C. and Ulber, B. 2005. MASTER - integrating biological control within IPM for winter oilseed rape across Europe. Proceedings BCPC International Congress - Crop Science and Technology, Glasgow, 31 October-2 November 2005 . pp. 301-308

Discontinuous gas exchange cycles and active ventilation in pupae of the bumblebee Bombus terrestris

A - Papers appearing in refereed journals

Mand, M., Kuusik, A., Martin, A-J., Williams, I. H., Luik, A., Karise, R., Metspalu, L. and Hiiesaar, K. 2005. Discontinuous gas exchange cycles and active ventilation in pupae of the bumblebee Bombus terrestris. Apidologie. 36 (4), pp. 561-570.

Responses of pollen beetles (Meligethes aeneus) to petal colour

C2 - Non-edited contributions to conferences

Cook, S. M., Skellern, M. P., Smith, M. and Williams, I. H. 2005. Responses of pollen beetles (Meligethes aeneus) to petal colour. Abstracts Biannual Meeting IOBC Working Group on Integrated Control in Oilseed Crops, Poznan, 11-12 October 2005 . pp. 73

Sex determination of insect pests of oilseed rape for behavioural assays

C2 - Non-edited contributions to conferences

Cook, S. M., Watts, N. P. and Williams, I. H. 2005. Sex determination of insect pests of oilseed rape for behavioural assays. Abstracts Biannual Meeting IOBC Working Group on Integrated Control in Oilseed Crops, Poznan, 11-12 October 2005 . pp. 80

Responses of pollen beetles (Meligethes aeneus) to conspecific odours

C2 - Non-edited contributions to conferences

Cook, S. M., Watts, N. P. and Williams, I. H. 2005. Responses of pollen beetles (Meligethes aeneus) to conspecific odours. Abstracts Biannual Meeting IOBC Working Group on Integrated Control in Oilseed Crops, Poznan, 11-12 October 2005 . pp. 72

The behavioural responses of the pollen beetle (Meligethes aeneus )to floral colours and odours: designing a 'push-pull' pest management strategy

C2 - Non-edited contributions to conferences

Cook, S. M., Rasmussen, H. B., Skellern, M. P., Watts, N. P., Williams, I. H. and Powell, W. 2005. The behavioural responses of the pollen beetle (Meligethes aeneus )to floral colours and odours: designing a 'push-pull' pest management strategy. Abstracts Entomology 2005, Brighton, 12-14 September 2005 . pp. 27

Could learning of pollen odours by honey bees (Apis mellifera ) play a role in their foraging behaviour?

A - Papers appearing in refereed journals

Cook, S. M., Sandoz, J-C., Martin, A. P., Murray, D. A., Poppy, G. M. and Williams, I. H. 2005. Could learning of pollen odours by honey bees (Apis mellifera ) play a role in their foraging behaviour? Physiological Entomology. 30 (2), pp. 164-174.

Effect of a turnip rape (Brassica rapa ) trap crop on stem-mining pests and their parasitoids in winter oilseed rape (Brassica napus )

A - Papers appearing in refereed journals

Barari, H., Cook, S. M., Clark, S. J. and Williams, I. H. 2005. Effect of a turnip rape (Brassica rapa ) trap crop on stem-mining pests and their parasitoids in winter oilseed rape (Brassica napus ). BioControl. 50, pp. 69-86.

Incidence and feeding activity of epigeic, predatory invertebrates within winter oilseed rape in the UK with comparisons between integrated and conventional crop management

C1 - Edited contributions to conferences/learned societies

Piper, R. and Williams, I. H. 2004. Incidence and feeding activity of epigeic, predatory invertebrates within winter oilseed rape in the UK with comparisons between integrated and conventional crop management.

Rearing and identification of the larval parasitoids of Psylliodes chrysocephala and Ceutorhynchus pallidactylus from field-collected specimens

C1 - Edited contributions to conferences/learned societies

Barari, H., Cook, S. M. and Williams, I. H. 2004. Rearing and identification of the larval parasitoids of Psylliodes chrysocephala and Ceutorhynchus pallidactylus from field-collected specimens.

Phenology and spatial distributions of Dasineura brassicae and its parasitoids in a crop of winter oilseed rape: implications for integrated pest management

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Campbell, J. M., Warner, D. J., Watts, N. P., Schmidt, J. E. U. and Williams, I. H. 2004. Phenology and spatial distributions of Dasineura brassicae and its parasitoids in a crop of winter oilseed rape: implications for integrated pest management.

Spatial dynamics of pollen beetles (Meligethes aeneus ) in relation to inflorescence growth stage within a simulated trap crop system for oilseed rape

C1 - Edited contributions to conferences/learned societies

Frearson, D. J. T., Ferguson, A. W., Campbell, J. M. and Williams, I. H. 2004. Spatial dynamics of pollen beetles (Meligethes aeneus ) in relation to inflorescence growth stage within a simulated trap crop system for oilseed rape.

Effects of a turnip rape trap crop on the spatial distribution of Meligethes aeneus and Ceutorhynchus assimilis in oilseed rape

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Watts, N. P., Hunter, F., Smart, L. E. and Williams, I. H. 2004. Effects of a turnip rape trap crop on the spatial distribution of Meligethes aeneus and Ceutorhynchus assimilis in oilseed rape.

The EU project MASTER (MAnagement STrategies for European Rape pests): a review of progress

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Buchs, W., Hokkanen, H., Klukowski, Z., Luik, A., Menzler-Hokkanen, I., Nilsson, C. and Ulber, B. 2004. The EU project MASTER (MAnagement STrategies for European Rape pests): a review of progress.

Spatio-temporal distributions of pests and their key parasitoids in a crop of winter oilseed rape: implications for integrated pest management

C2 - Non-edited contributions to conferences

Williams, I. H., Ferguson, A. W., Barari, H., Campbell, J., Warner, D. J., Watts, N. and Schmidt, J. E. U. 2004. Spatio-temporal distributions of pests and their key parasitoids in a crop of winter oilseed rape: implications for integrated pest management. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

Effects of turnip rape (Brassica rapa ) trap crop and insecticide treatment on infestation of winter oilseed rape (Brassica napus ) by coleopteran stem-mining pests and their parasitoids

C1 - Edited contributions to conferences/learned societies

Barari, H., Cook, S. M., Watts, N. P. and Williams, I. H. 2004. Effects of turnip rape (Brassica rapa ) trap crop and insecticide treatment on infestation of winter oilseed rape (Brassica napus ) by coleopteran stem-mining pests and their parasitoids. Proceedings 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 1015-1017

Advances in insect pest management of oilseed rape in Europe

B - Book chapters etc edited externally

Williams, I. H. 2004. Advances in insect pest management of oilseed rape in Europe. in: Horowitz, A. R. and Ishaaya, I. (ed.) Insect pest management Springer, Berlin. pp. 181-208

Pushing insects around: the use of 'push-pull' strategies in integrated pest management

C2 - Non-edited contributions to conferences

Cook, S. M., Powell, W., Smart, L. E., Watts, N. P. and Williams, I. H. 2004. Pushing insects around: the use of 'push-pull' strategies in integrated pest management. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

On the target entomofauna of an organic winter oilseed rape field in Estonia

C1 - Edited contributions to conferences/learned societies

Tarang, T., Veromann, E., Luik, A. and Williams, I. H. 2004. On the target entomofauna of an organic winter oilseed rape field in Estonia.

MASTER - ein neues EU-Projekt zur Bedeutung der naturlichen Gegenspieler fur die biologische Kontrolle von Schadlingen im integrierten Rapsanbau in Europa

C1 - Edited contributions to conferences/learned societies

Ulber, B., Buchs, W., Hokkanen, H., Johnen, A., Klukowski, Z., Luik, A., Menzler-Hokkanen, I., Nilsson, C. and Williams, I. H. 2004. MASTER - ein neues EU-Projekt zur Bedeutung der naturlichen Gegenspieler fur die biologische Kontrolle von Schadlingen im integrierten Rapsanbau in Europa.

Do pollen beetles need pollen? The effect of pollen on oviposition, survival and development of a flower-feeding herbivore

A - Papers appearing in refereed journals

Cook, S. M., Murray, D. A. and Williams, I. H. 2004. Do pollen beetles need pollen? The effect of pollen on oviposition, survival and development of a flower-feeding herbivore. Ecological Entomology. 29 (2), pp. 164-173.

Major new developments at Rothamsted

G - Articles in popular magazines and other technical publications

Williams, I. H. and Ball, B. V. 2003. Major new developments at Rothamsted. The Beekeepers Quarterly. 72, pp. 16-17.

Sampling, trapping and rearing oilseed rape pests and their parasitoids

B - Book chapters etc edited externally

Williams, I. H., Buchi, R. and Ulber, B. 2003. Sampling, trapping and rearing oilseed rape pests and their parasitoids. in: Alford, D. V. (ed.) Biocontrol of oilseed rape pests Blackwell Scientific Publications, Oxford. pp. 145-160

Parasitoids of brassica pod midge

B - Book chapters etc edited externally

Williams, I. H. 2003. Parasitoids of brassica pod midge. in: Alford, D. V. (ed.) Biocontrol of oilseed rape pests Blackwell Scientific Publications, Oxford. pp. 113-123

Parasitoids of cabbage seed weevil

B - Book chapters etc edited externally

Williams, I. H. 2003. Parasitoids of cabbage seed weevil. in: Alford, D. V. (ed.) Biocontrol of oilseed rape pests Blackwell Scientific Publications, Oxford. pp. 97-112

Mapping, characterisation and comparison of the spatio-temporal distributions of cabbage stem flea beetle (Psylliodes chrysocephala ), carabids and Collembola in a crop of winter oilseed rape (Brassica napus )

A - Papers appearing in refereed journals

Warner, D. J., Allen-Williams, L. J., Warrington, S., Ferguson, A. W. and Williams, I. H. 2003. Mapping, characterisation and comparison of the spatio-temporal distributions of cabbage stem flea beetle (Psylliodes chrysocephala ), carabids and Collembola in a crop of winter oilseed rape (Brassica napus ). Entomologia Experimentalis et Applicata. 109, pp. 225-234.

Parasitoids of flea beetles

B - Book chapters etc edited externally

Ulber, B. and Williams, I. H. 2003. Parasitoids of flea beetles. in: Alford, D. V. (ed.) Biocontrol of oilseed rape pests Blackwell Scientific Publications, Oxford. pp. 125-138

Spatio-temporal distributions of Meligethes aeneus and its parasitoids in an oilseed rape crop and their significance for crop protection

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Campbell, J. M., Warner, D. J., Watts, N. P., Schmidt, J. E. U. and Williams, I. H. 2003. Spatio-temporal distributions of Meligethes aeneus and its parasitoids in an oilseed rape crop and their significance for crop protection. Proceedings 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 1057-1059

Pollination

B - Book chapters etc edited externally

Osborne, J. L. and Free, J. B. 2003. Pollination. in: Thomas, B., Murray, B. G. and Murphy, D. J. (ed.) Encyclopedia of applied plant sciences Academic Press Inc New York. pp. 315-325

Are honey bees' foraging preferences affected by pollen amino acid composition

A - Papers appearing in refereed journals

Cook, S. M., Awmack, C. S., Murray, D. A. and Williams, I. H. 2003. Are honey bees' foraging preferences affected by pollen amino acid composition. Ecological Entomology. 28 (5), pp. 622-627.

Effects of a turnip rape (Brassica rapa ) trap crop and insecticide treatment on infestation of winter oilseed rape (Brassica napus ) by coleopteran stem-mining pests and their parasitoids

C2 - Non-edited contributions to conferences

Barari, H., Cook, S. M., Watts, N. P. and Williams, I. H. 2003. Effects of a turnip rape (Brassica rapa ) trap crop and insecticide treatment on infestation of winter oilseed rape (Brassica napus ) by coleopteran stem-mining pests and their parasitoids. Abstracts 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 .

Management strategies for winter oilseed rape to enhance biocontrol of rape pests

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Buchs, W., Hokkanen, H., Klukowski, Z., Luik, A., Menzier-Hokkanen, I., Nilsson, C. and Ulber, B. 2003. Management strategies for winter oilseed rape to enhance biocontrol of rape pests. Proceedings 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 1011-1013

Push-pull strategies to reduce insecticide input to oilseed rape (Brassica napus ): potential of low alkenyl glucosinolate oilseed rape varieties (push!) and turnip rape (Brassica rapa ) trap crops (pull!)

C2 - Non-edited contributions to conferences

Cook, S. M., Smart, L. E., Rasmussen, H. B., Bartlet, E., Martin, J. L., Murray, D. A., Watts, N. P. and Williams, I. H. 2003. Push-pull strategies to reduce insecticide input to oilseed rape (Brassica napus ): potential of low alkenyl glucosinolate oilseed rape varieties (push!) and turnip rape (Brassica rapa ) trap crops (pull!). Abstracts 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 122

Push-pull strategies to reduce insecticide input to oilseed rape (Brassica napus ): potential of low alkenyl glucosinolate oilseed rape varieties (push!), and turnip rape (Brassica rapa ) trap crops (pull!)

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Smart, L. E., Rasmussen, H. B., Bartlet, E., Martin, J. L., Murray, D. A., Watts, N. P. and Williams, I. H. 2003. Push-pull strategies to reduce insecticide input to oilseed rape (Brassica napus ): potential of low alkenyl glucosinolate oilseed rape varieties (push!), and turnip rape (Brassica rapa ) trap crops (pull!). Proceedings 11th International Rapeseed Congress, Copenhagen, 6-10 July 2003 . pp. 1018-1021

Spatial distribution of pest insects in oilseed rape: implications for integrated pest management

A - Papers appearing in refereed journals

Ferguson, A. W., Klukowski, Z., Walczak, B., Clark, S. J., Mugglestone, M. A., Perry, J. N. and Williams, I. H. 2003. Spatial distribution of pest insects in oilseed rape: implications for integrated pest management. Agriculture, Ecosystems & Environment. 95, pp. 509-521.

The convention on biological diversity adopts the International Pollinator Initiative

G - Articles in popular magazines and other technical publications

Williams, I. H. 2003. The convention on biological diversity adopts the International Pollinator Initiative. Bee World. 84, pp. 27-31.

Pollen beetle spatio-temporal distributions in semi field scale arrays of oilseed rape plants

C2 - Non-edited contributions to conferences

Frearson, D. J. T., Ferguson, A. W., Campbell, J. C. and Williams, I. H. 2002. Pollen beetle spatio-temporal distributions in semi field scale arrays of oilseed rape plants. Abstracts 6th National Meeting of the Royal Entomological Society, Cardiff, 12-13 September 2002 .

Bee behaviour and pollination ecology

G - Articles in popular magazines and other technical publications

Williams, I. H. and Osborne, J. L. 2002. Bee behaviour and pollination ecology. Institute Of Arable Crops Research Annual Report. 2001-2002, pp. 24-27.

Pesticide risk to bee pollinators

G - Articles in popular magazines and other technical publications

Lewis, G., Stevenson, J. H. and Williams, I. H. 2002. Pesticide risk to bee pollinators.

Within-field distributions of the seed weevil, Ceutorhynchus assimilis (Paykull) and its parasitoid, Trichomalus perfectus (Walker), on winter oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Murchie, A. K., Ferguson, A. W., Klukowski, Z., Perry, J. N. and Walczak, B. 2002. Within-field distributions of the seed weevil, Ceutorhynchus assimilis (Paykull) and its parasitoid, Trichomalus perfectus (Walker), on winter oilseed rape.

GM crops, risk assessment, bees and honey

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2002. GM crops, risk assessment, bees and honey.

GM crops, bee foraging behaviour and gene flow

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2002. GM crops, bee foraging behaviour and gene flow.

The role of pollen odour in the attraction of pollen beetles to oilseed rape flowers

A - Papers appearing in refereed journals

Cook, S. M., Bartlet, E., Murray, D. A. and Williams, I. H. 2002. The role of pollen odour in the attraction of pollen beetles to oilseed rape flowers. Entomologia Experimentalis et Applicata. 104 (1), pp. 43-50.

The International Pollinator Initiative

C2 - Non-edited contributions to conferences

Williams, I. H. 2002. The International Pollinator Initiative. Proceedings 6th European Bee Conference, Cardiff, 1-5 July 2002 . pp. 37-38

MASTER: management strategies for European rape pests - a new EU project

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Buchs, W., Hokkanen, H., Menzler-Hokkanen, I., Johnen, A., Klukowski, Z., Luik, A., Nilsson, C. and Ulber, B. 2002. MASTER: management strategies for European rape pests - a new EU project. Proceedings Brighton Crop Protection Conference - Pests and Diseases 2002 . pp. 641-646

Insect pollination and crop production: a European perspective

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2002. Insect pollination and crop production: a European perspective. Kevan, P. G. and Imperatriz-Fonseca, V. L. (ed.) The Conservation Link Between Agriculture and Nature: Proceedings of the Workshop on the Conservation and Sustainable Use of Pollinators in Agriculture with Emphasis on Bees, Sao Paulo, October 1998 . pp. 59-65

Integrated pest management strategies incorporating bio-control for European oilseed rape pests

C2 - Non-edited contributions to conferences

Williams, I. H., Buchs, W., Hokkanen, H., Johnen, A., Klukowski, Z., Luik, A., Menzler-Hokkanen, I., Nilsson, C. and Ulber, B. 2002. Integrated pest management strategies incorporating bio-control for European oilseed rape pests. Abstracts 7th European Congress of Entomology, Thessaloniki, 7-13 October 2002 .

Cultivation of GM crops in the EU, farmland biodiversity and bees

A - Papers appearing in refereed journals

Williams, I. H. 2002. Cultivation of GM crops in the EU, farmland biodiversity and bees. Bee World. 83, pp. 119-133.

Spatial pattern in the distribution of pests and yield in an oilseed rape crop: implications for ICM

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Perry, J. N., Williams, I. H., Klukowski, Z., Walczak, B., Clark, S. J. and Mugglestone, M. A. 2002. Spatial pattern in the distribution of pests and yield in an oilseed rape crop: implications for ICM. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2002 . pp. 659-664

Turnip rape (Brassica rapa) as a trap crop to protect oilseed rape (Brassica napus) from infestation by insect pests: potential and mechanisms of action

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Smart, L. E., Potting, R. J. P., Bartlet, E., Martin, J. L., Murray, D. A., Watts, N. P. and Williams, I. H. 2002. Turnip rape (Brassica rapa) as a trap crop to protect oilseed rape (Brassica napus) from infestation by insect pests: potential and mechanisms of action. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2002 . pp. 569-574

The EU regulatory framework for GM foods in relation to bee products

A - Papers appearing in refereed journals

Williams, I. H. 2002. The EU regulatory framework for GM foods in relation to bee products. Bee World. 83, pp. 78-87.

The EU regulatory framework for GM crops in relation to bees

A - Papers appearing in refereed journals

Williams, I. H. 2002. The EU regulatory framework for GM crops in relation to bees. Bee World. 83, pp. 24-35.

Bumblebees in the agricultural landscape of Estonia

A - Papers appearing in refereed journals

Mand, M., Mand, R. and Williams, I. H. 2002. Bumblebees in the agricultural landscape of Estonia. Agriculture, Ecosystems & Environment. 89, pp. 69-76.

Spatial patterns of insect pest distribution in an oilseed rape crop: relationships to plant growth and yield and significance for IPM

C2 - Non-edited contributions to conferences

Ferguson, A. W., Klukowski, Z., Walczak, B., Clark, S. J., Mugglestone, M. A., Perry, J. N. and Williams, I. H. 2002. Spatial patterns of insect pest distribution in an oilseed rape crop: relationships to plant growth and yield and significance for IPM. Abstracts 7th European Congress of Entomology, Thessaloniki, 7-13 October 2002 . pp. 207

Spatial pattern and the relationship between pests and plant growth in a winter oilseed rape crop

C2 - Non-edited contributions to conferences

Ferguson, A. W., Klukowski, Z., Walczak, B., Clark, S. J., Mugglestone, M. A., Perry, J. N. and Williams, I. H. 2002. Spatial pattern and the relationship between pests and plant growth in a winter oilseed rape crop. Abstracts 6th National Meeting of the Royal Entomological Society, Cardiff, 12-13 September 2002 . pp. 15-16

Management strategies for European rape pests - a new EU project

C2 - Non-edited contributions to conferences

Williams, I. H. 2002. Management strategies for European rape pests - a new EU project. Abstracts 6th National Meeting of the Royal Entomological Society, Cardiff, 12-13 September 2002 .

How far do honey bees fly to fields of Brassica napus (oilseed rape)?

C2 - Non-edited contributions to conferences

Osborne, J. L., Carreck, N. L. and Williams, I. H. 2002. How far do honey bees fly to fields of Brassica napus (oilseed rape)? Abstracts Royal Entomological Society Meeting on Insect Pollination Ecology, Exeter, 4 May 2002 .

Turnip rape as a trap crop to protect oilseed rape from infestation by insect pests: potential and mechanisms of action

C2 - Non-edited contributions to conferences

Cook, S. M., Smart, L. E., Potting, R. P. J., Bartlet, E., Martin, J. L., Murray, D. A., Watts, N. P. and Williams, I. H. 2002. Turnip rape as a trap crop to protect oilseed rape from infestation by insect pests: potential and mechanisms of action. Abstracts 6th National Meeting of the Royal Entomological Society, Cardiff, 12-13 September 2002 .

Food for insect pollinators on farmland: insect visits to flowers of annual seed mixtures

A - Papers appearing in refereed journals

Carreck, N. L. and Williams, I. H. 2002. Food for insect pollinators on farmland: insect visits to flowers of annual seed mixtures. Journal of Insect Conservation. 6, pp. 13-23.

Insect spatial population dynamics in winter rape: potential to reduce environmental impacts

C2 - Non-edited contributions to conferences

Warner, D. J., Allen-Williams, L. J., Ferguson, A. W. and Williams, I. H. 2002. Insect spatial population dynamics in winter rape: potential to reduce environmental impacts. Abstracts Conference on Managing the Environmental Effects of Agriculture, Coventry, 25-26 March 2002 .

The role of pollen odour in the attraction of pollen beetles to oilseed rape flowers

C2 - Non-edited contributions to conferences

Cook, S. M., Bartlet, E., Murray, D. A. and Williams, I. H. 2001. The role of pollen odour in the attraction of pollen beetles to oilseed rape flowers. Abstracts 11th International Symposium on Insect-Plant Relationships, Helsingor, Denmark, 4-10 August 2001 . pp. 34

GM crops, bee foraging behaviour and gene flow

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2001. GM crops, bee foraging behaviour and gene flow. Proceedings 37th International Apicultural Congress, Durban, 28 October-1 November 2001 .

Pollen and gene flow mediated by bees

C2 - Non-edited contributions to conferences

Williams, I. H. 2001. Pollen and gene flow mediated by bees. Abstracts 8th International Pollination Symposium, Hungary, 10-14 July 2000 .

Bee-mediated pollen and gene flow from GM plants

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2001. Bee-mediated pollen and gene flow from GM plants. International Society of Horticultural Science (ISHS).

Welcome to Symposium participants on behalf of ICPBR

C2 - Non-edited contributions to conferences

Williams, I. H. 2001. Welcome to Symposium participants on behalf of ICPBR. International Society of Horticultural Science (ISHS).

Pollination and gene flow in white clover, growing in a patchy habitat

C1 - Edited contributions to conferences/learned societies

Osborne, J. L., Williams, I. H., Marshall, A. H. and Michaelson-Yeates, T. P. T. 2001. Pollination and gene flow in white clover, growing in a patchy habitat. International Society of Horticultural Science (ISHS).

GM crops, bee foraging behaviour and gene flow

C2 - Non-edited contributions to conferences

Williams, I. H. 2001. GM crops, bee foraging behaviour and gene flow. Abstracts 37th International Apicultural Congress, Durban, 28 October-1 November 2001 . pp. 129

How far do honey bees fly to fields of Brassica napus (oilseed rape)?

C1 - Edited contributions to conferences/learned societies

Osborne, J. L., Carreck, N. L. and Williams, I. H. 2001. How far do honey bees fly to fields of Brassica napus (oilseed rape)? Proceedings 37th International Apicultural Congress, Durban, 28 October-1 November 2001 .

How far do honey bees fly to fields of Brassica napus (oilseed rape)?

C2 - Non-edited contributions to conferences

Osborne, J. L., Carreck, N. L. and Williams, I. H. 2001. How far do honey bees fly to fields of Brassica napus (oilseed rape)? Abstracts 37th International Apicultural Congress, Durban, 28 October-1 November 2001 . pp. 130

Goat's rue

A - Papers appearing in refereed journals

Carreck, N. L., Mand, M. and Williams, I. H. 2001. Goat's rue. Bee World. 82, pp. 142-146.

Modelling bee-mediated gene flow from genetically modified plants

G - Articles in popular magazines and other technical publications

Williams, I. H. 2001. Modelling bee-mediated gene flow from genetically modified plants.

Site constancy of bumble bees in an experimentally patchy habitat

A - Papers appearing in refereed journals

Osborne, J. L. and Williams, I. H. 2001. Site constancy of bumble bees in an experimentally patchy habitat. Agriculture, Ecosystems & Environment. 83, pp. 129-141.

A novel mechanism for time-sorting insect catches, and its use to derive the diel flight periodicity of brassica pod midge Dasineura brassicae (Diptera: Cecidomyiidae)

A - Papers appearing in refereed journals

Murchie, A. K., Burn, D. J., Kirk, W. D. J. and Williams, I. H. 2001. A novel mechanism for time-sorting insect catches, and its use to derive the diel flight periodicity of brassica pod midge Dasineura brassicae (Diptera: Cecidomyiidae). Bulletin of Entomological Research. 91, pp. 199-203.

Harmonic radar: progress in the use of this new technique to study bee flight

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Osborne, J. L., Riley, J. R., Smith, A. D., Reynolds, D. R., Carreck, N. L. and Poppy, G. M. 2000. Harmonic radar: progress in the use of this new technique to study bee flight. Proceedings 6th International Conference on Apiculture in Tropical Climates, Costa Rica, 13-19 August 1996 . International Bee Research Association - IBRA. pp. 135-139

Within-field distributions of the seed weevil, Ceutorhynchus assimilis (Paykull) and its parasitoid, Trichomalus perfectus (Walker), on winter oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Murchie, A. K., Ferguson, A. W., Klukowski, Z., Perry, J. N. and Walczak, B. 2000. Within-field distributions of the seed weevil, Ceutorhynchus assimilis (Paykull) and its parasitoid, Trichomalus perfectus (Walker), on winter oilseed rape.

Integrated management of pest and beneficial insects on oilseeds (Final report for MAFF project AR0203)

D1 - Technical reports: non-confidential

Williams, I. H. 2000. Integrated management of pest and beneficial insects on oilseeds (Final report for MAFF project AR0203).

Spatial relationships between a predator and pest infestation in winter rape and releveance to integrated pest management strategies

C2 - Non-edited contributions to conferences

Warner, D. J., Allen-Williams, L. J., Williams, I. H. and Perry, J. N. 2000. Spatial relationships between a predator and pest infestation in winter rape and releveance to integrated pest management strategies. Abstract Book 1: 21st International Congress of Entomology, Foz do Iguassu, Brazil, 20-26 August 2000 . pp. 94

Spatio-temporal relationships between Psylliodes chrysocephala (cabbage stem flea beetle) larvae and predatory carabid beetles in a crop of winter oilseed rape

C2 - Non-edited contributions to conferences

Warner, D. J., Allen-Williams, L. J., Ferguson, A. W. and Williams, I. H. 2000. Spatio-temporal relationships between Psylliodes chrysocephala (cabbage stem flea beetle) larvae and predatory carabid beetles in a crop of winter oilseed rape. Abstracts Entomology 2000, Liverpool, 14-15 September 2000 .

Minimizing pesticide use and environmental impact by the development and promotion of bio-control strategies for oilseed rape pests. Final Report (FAIR-CT 96-1314)

D1 - Technical reports: non-confidential

Alford, D. V., Ballanger, Y., Buchi, R., Buchs, W., Ekbom, B., Hansen, L. M., Hokkanen, H. M. T., Kromp, B., Nilsson, L. C., Ulber, B., Walters, K. F. A., Williams, I. H. and Young, J. E. B. 2000. Minimizing pesticide use and environmental impact by the development and promotion of bio-control strategies for oilseed rape pests. Final Report (FAIR-CT 96-1314).

Prospects for improving crop production with honey bees

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 2000. Prospects for improving crop production with honey bees. Proceedings 2nd International Workshop on the Conservation and Utilisation of Commercial Insects, ICIPE, Nairobi . pp. 236-251

Pest-predator spatial relationships in winter rape: implications for integrated crop management

A - Papers appearing in refereed journals

Warner, D. J., Allen-Williams, L. J., Ferguson, A. W. and Williams, I. H. 2000. Pest-predator spatial relationships in winter rape: implications for integrated crop management. Pest Management Science. 56 (11), pp. 977-982.

The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape

C1 - Edited contributions to conferences/learned societies

Carreck, N. L., Butt, T. M., Ibrahim, L., Pell, J. K. and Williams, I. H. 2000. The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape.

The economic value of bees in the UK (Beekeeping in a Nutshell No. 51)

G - Articles in popular magazines and other technical publications

Carreck, N. L. and Williams, I. H. 2000. The economic value of bees in the UK (Beekeeping in a Nutshell No. 51).

The spatio-temporal distribution of adult Ceutorhynchus assimilis in a crop of winter oilseed rape in relation to the distribution of their larvae and that of the parasitoid Trichomalus perfectus

A - Papers appearing in refereed journals

Ferguson, A. W., Klukowski, Z., Walczak, B., Perry, J. N., Mugglestone, M. A., Clark, S. J. and Williams, I. H. 2000. The spatio-temporal distribution of adult Ceutorhynchus assimilis in a crop of winter oilseed rape in relation to the distribution of their larvae and that of the parasitoid Trichomalus perfectus. Entomologia Experimentalis et Applicata. 95 (2), pp. 161-171.

Pollination and gene flow in white clover, growing in a patchy habitat

C2 - Non-edited contributions to conferences

Osborne, J. L., Williams, I. H., Marshall, A. T. and Michaelson-Yates, T. P. T. 2000. Pollination and gene flow in white clover, growing in a patchy habitat. Abstracts 8th International Pollination Symposium, Mosonmagyarovar, Hungary, 10-14 July 2000 . pp. 15

Pest-parasitoid spatial relationships in winter rape: implications for ICM

C2 - Non-edited contributions to conferences

Ferguson, A. W., Klukowski, Z., Walczak, B., Perry, J. N. and Williams, I. H. 2000. Pest-parasitoid spatial relationships in winter rape: implications for ICM. Abstracts Society of Industrial Chemistry Meeting on the Economic and Commercial Impact of Integrated Crop Management, London, 3-4 April 2000 .

Functional anatomy of sensory structures on the antennae of Psylliodes chrysocephala L. (Coleoptera: Chrysomelidae)

A - Papers appearing in refereed journals

Bartlet, E., Romani, R., Williams, I. H. and Isidoro, N. 2000. Functional anatomy of sensory structures on the antennae of Psylliodes chrysocephala L. (Coleoptera: Chrysomelidae). International Journal of Insect Morphology and Embryology. 28, pp. 291-300.

Platygaster subuliformis (Kieffer) (Hym., Platygastridae) new to Britain, an egg-larval parasitoid of the brassica pod midge, Dasineura brassica Winnertz (Dipt., Cecidomyiidae)

A - Papers appearing in refereed journals

Murchie, A. K., Polaszek, A. and Williams, I. H. 1999. Platygaster subuliformis (Kieffer) (Hym., Platygastridae) new to Britain, an egg-larval parasitoid of the brassica pod midge, Dasineura brassica Winnertz (Dipt., Cecidomyiidae). Entomologist's monthly magazine. 135, pp. 217-222.

The ideal glucosinolate profile for pest resistance in oilseed rape

C1 - Edited contributions to conferences/learned societies

Bartlet, E., Williams, I. H. and Pickett, J. A. 1999. The ideal glucosinolate profile for pest resistance in oilseed rape.

Spatio-temporal dynamics of insect distributions in oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Murchie, A. K., Ferguson, A. W., Klukowski, Z., Perry, J. N., Walczak, B., Mugglestone, M. A. and Clark, S. J. 1999. Spatio-temporal dynamics of insect distributions in oilseed rape. Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. (CD-ROM) .

A bee flight room designed for studies of bee foraging behaviour

A - Papers appearing in refereed journals

Poppy, G. M. and Williams, I. H. 1999. A bee flight room designed for studies of bee foraging behaviour. Journal of Apicultural Research. 38, pp. 177-189.

Over what distances do honey bees fly to GM and conventional oilseed rape?

C2 - Non-edited contributions to conferences

Osborne, J. L., Carreck, N. L., Herrmann, D. and Williams, I. H. 1999. Over what distances do honey bees fly to GM and conventional oilseed rape? Abstracts British Ecological Society Winter and Annual General Meeting, Leeds, 20-22 December 1999 . pp. 72

Edge distributions of Ceutorhynchus assimilis and its parasitoid Trichomalus perfectus in a crop of winter oilseed rape (Brassica napus)

A - Papers appearing in refereed journals

Murchie, A. K., Williams, I. H. and Perry, J. N. 1999. Edge distributions of Ceutorhynchus assimilis and its parasitoid Trichomalus perfectus in a crop of winter oilseed rape (Brassica napus). BioControl. 44 (4), pp. 379-390.

Pollen beetle, Meligethes aeneus Fabricius, incidence in the composite hybrid winter oilseed rape, Synergy

C1 - Edited contributions to conferences/learned societies

Cook, S. M., Murray, D. A. and Williams, I. H. 1999. Pollen beetle, Meligethes aeneus Fabricius, incidence in the composite hybrid winter oilseed rape, Synergy. Proceedings 10th International Rapeseed Congress: New Horizons for an Old Crop, Canberra, 26-29 September 1999. CD ROM and Abstract Book .

The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape

G - Articles in popular magazines and other technical publications

Carreck, N. L., Butt, T. M., Ibrahim, L., Pell, J. K. and Williams, I. H. 1999. The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape. Beekeepers News. 85, pp. 9-10.

A landscape-scale study of bumble bee foraging range and constancy, using harmonic radar

A - Papers appearing in refereed journals

Osborne, J. L., Clark, S. J., Morris, R. J., Williams, I. H., Riley, J. R., Smith, A. D., Reynolds, D. R. and Edwards, A. S. 1999. A landscape-scale study of bumble bee foraging range and constancy, using harmonic radar. Journal of Applied Ecology. 36 (4), pp. 519-533.

Perception of oviposition-deterring pheromone by cabbage seed weevil (Ceutorhynchus assimilis )

A - Papers appearing in refereed journals

Ferguson, A. W., Ziesmann, J., Blight, M. M., Williams, I. H., Wadhams, L. J., Clark, S. J., Woodcock, C. M. and Mudd, A. 1999. Perception of oviposition-deterring pheromone by cabbage seed weevil (Ceutorhynchus assimilis ). Journal of Chemical Ecology. 25, pp. 1655-1670.

Identification of the gland secreting oviposition-deterring pheromone in the cabbage seed weevil, Ceutorhynchus assimilis, and the mechanism of pheromone deposition

A - Papers appearing in refereed journals

Ferguson, A. W., Solinas, M., Ziesmann, J., Isidoro, N., Williams, I. H., Scubla, P., Mudd, A., Clark, S. J. and Wadhams, L. J. 1999. Identification of the gland secreting oviposition-deterring pheromone in the cabbage seed weevil, Ceutorhynchus assimilis, and the mechanism of pheromone deposition. Journal of Insect Physiology. 45 (7), pp. 687-699.

Compensation for wind drift by bumble-bees

A - Papers appearing in refereed journals

Riley, J. R., Reynolds, D. R., Smith, A. D., Edwards, A. S., Osborne, J. L., Williams, I. H. and McCartney, H. A. 1999. Compensation for wind drift by bumble-bees. Nature. 400 (6740), p. 126.

Spatial population dynamics of a pest and its parasitoid in an oilseed rape crop

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Williams, I. H., Klukowski, Z., Walczak, B. and Perry, J. N. 1999. Spatial population dynamics of a pest and its parasitoid in an oilseed rape crop. Challenges in Applied Population Biology. Aspects of Applied Biology 53 . pp. 143-148

The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape

C2 - Non-edited contributions to conferences

Carreck, N. L., Butt, T. M., Ibrahim, L., Pell, J. K. and Williams, I. H. 1999. The use of honey bees to disseminate an insect pathogenic fungus for control of insect pests on oilseed rape. Proceedings 36th International Apicultural Congress, Vancouver, 12-18 September 1999 . pp. 236-237

Enhancing farmland for insect pollinators using flower mixtures

C1 - Edited contributions to conferences/learned societies

Carreck, N. L., Williams, I. H. and Oakley, J. N. 1999. Enhancing farmland for insect pollinators using flower mixtures. Field Margins and Buffer Zones: Ecology, Management and Policy. Aspects of Applied Biology 54 . pp. 101-108

Honey bee mediated infection of pollen beetle (Meligethes aeneus Fab.) by the insect-pathogenic fungus, Metarhizium anisopliae

C2 - Non-edited contributions to conferences

Butt, T. M., Carreck, N. L., Ibrahim, L. and Williams, I. H. 1999. Honey bee mediated infection of pollen beetle (Meligethes aeneus Fab.) by the insect-pathogenic fungus, Metarhizium anisopliae. Abstracts Symposium on Biological Control Agents in Crop and Animal Protection, Swansea, 24-28 August 1999 .

Wound-induced increases in the glucosinolate content of oilseed rape and their effect on subsequent herbivory by a crucifer specialist

A - Papers appearing in refereed journals

Bartlet, E., Kiddle, G., Martin, A. P., Williams, I. H. and Wallsgrove, R. M. 1999. Wound-induced increases in the glucosinolate content of oilseed rape and their effect on subsequent herbivory by a crucifer specialist. Entomologia Experimentalis et Applicata. 91 (1), pp. 163-167.

New techniques for studying the spatial and temporal dynamics of the foraging flights of bumble bees in relation to plant gene flow within agricultural habitats

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1999. New techniques for studying the spatial and temporal dynamics of the foraging flights of bumble bees in relation to plant gene flow within agricultural habitats. Proceedings 24th Nordic Congress of Entomology, 1999 . pp. 193-199

Sex attractant for the male antler moth Cerapteryx graminis (L.)

C1 - Edited contributions to conferences/learned societies

Mottus, E., Liblikas, I. and Williams, I. H. 1999. Sex attractant for the male antler moth Cerapteryx graminis (L.). Proceedings 24th Nordic Congress of Entomology, Tartu, Estonia, 8-11 August 1997 . pp. 117-123

How busy are bees - modelling the pollination of clover

G - Articles in popular magazines and other technical publications

Marshall, A., Michaelson-Yeates, T. P. T. and Williams, I. H. 1999. How busy are bees - modelling the pollination of clover. Iger Innovations. No. 3, pp. 18-21.

The economic value of bees in the UK

G - Articles in popular magazines and other technical publications

Carreck, N. L. and Williams, I. H. 1999. The economic value of bees in the UK. Bee Farmers' Association Bulletin. 317, pp. 21-28.

The effects of habitat fragmentation on pollination and gene flow in white clover

C2 - Non-edited contributions to conferences

Osborne, J. L., Williams, I. H., Marshall, A. H. and Michaelson-Yeates, T. P. T. 1999. The effects of habitat fragmentation on pollination and gene flow in white clover. Abstracts British Ecological Society Winter and Annual General Meeting, Leicester, 5-8 January 1999 .

Bee-mediated control of pollen beetles by Metarhizium anisopilae

C2 - Non-edited contributions to conferences

Carreck, N. L., Butt, T. M., Ibrahim, L. and Williams, I. H. 1998. Bee-mediated control of pollen beetles by Metarhizium anisopilae. Abstracts International Symposium on the Future of Fungi in the Control of Pests, Weeds and Diseases, Southampton, 5-9 April 1998 . pp. 106

Honey-bee-mediated infection of pollen beetle (Meligethes aeneus Fab.) by the insect-pathogenic fungus, Metarhizium anisopliae

A - Papers appearing in refereed journals

Butt, T. M., Carreck, N. L., Ibrahim, L. and Williams, I. H. 1998. Honey-bee-mediated infection of pollen beetle (Meligethes aeneus Fab.) by the insect-pathogenic fungus, Metarhizium anisopliae. Biocontrol Science and Technology. 8, pp. 533-538.

A bibliography of the parasitoids of the cabbage seed weevil (Ceutorhynchus assimilis PAYK.)

C1 - Edited contributions to conferences/learned societies

Murchie, A. K. and Williams, I. H. 1998. A bibliography of the parasitoids of the cabbage seed weevil (Ceutorhynchus assimilis PAYK.).

The effect of trap design and 2-phenylethyl isothiocyanate on catches of stem weevils (Ceutorhynchus pallidactylus Marsh. and C. napi Gyll.) in winter oilseed rape

C1 - Edited contributions to conferences/learned societies

Walczak, B., Kelm, M., Klukowski, Z., Smart, L. E., Ferguson, A. W. and Williams, I. H. 1998. The effect of trap design and 2-phenylethyl isothiocyanate on catches of stem weevils (Ceutorhynchus pallidactylus Marsh. and C. napi Gyll.) in winter oilseed rape.

Effect of host size on the sex of Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae)

C1 - Edited contributions to conferences/learned societies

Murchie, A. K. and Williams, I. H. 1998. Effect of host size on the sex of Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae).

Insect-plant interactions: pollinators and pests

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1998. Insect-plant interactions: pollinators and pests. Bournoville, R. (ed.) Interactions Insectes-plantes: Actes 6e Journees du Groupe de Travail Relations Insectes-plantes, Lusignan, 4-5 Juin 1997 . pp. 9-12

Antennal contact chemosensilla in Psylliodes chrysocephala responding to cruciferous allelochemicals

A - Papers appearing in refereed journals

Isidoro, N., Bartlet, E., Ziesmann, J. and Williams, I. H. 1998. Antennal contact chemosensilla in Psylliodes chrysocephala responding to cruciferous allelochemicals. Physiological Entomology. 23 (2), pp. 131-138.

Growth stimulation of beetle larvae reared on a transgenic oilseed rape expressing a cysteine proteinase inhibitor

A - Papers appearing in refereed journals

Girard, C., Le Metayer, M., Zaccomer, B., Bartlet, E., Williams, I. H., Bonade-Bottino, M., Pham-Delegue, M-H. and Jouanin, L. 1998. Growth stimulation of beetle larvae reared on a transgenic oilseed rape expressing a cysteine proteinase inhibitor. Journal of Insect Physiology. 44, pp. 263-270.

The economic value of bees in the UK

A - Papers appearing in refereed journals

Carreck, N. L. and Williams, I. H. 1998. The economic value of bees in the UK. Bee World. 79, pp. 115-123.

The flightless aphid

G - Articles in popular magazines and other technical publications

Williams, I. H. and Dewar, A. M. 1998. The flightless aphid. British Sugar Beet Review. 66(2), pp. 35-37.

White clover: honey bees v. bumble bees as pollinators

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1997. White clover: honey bees v. bumble bees as pollinators. Proceedings 35th International Apicultural Congress, Antwerp, 1-6 September 1997 . pp. 335-339

The responses of the cabbage seed weevil Ceutorhynchus assimilis to volatile compounds from oilseed rape in a linear track olfactometer

A - Papers appearing in refereed journals

Bartlet, E., Blight, M. M., Lane, P. W. and Williams, I. H. 1997. The responses of the cabbage seed weevil Ceutorhynchus assimilis to volatile compounds from oilseed rape in a linear track olfactometer. Entomologia Experimentalis et Applicata. 85 (3), pp. 257-262.

The movement of honey bee colonies for crop pollination and honey production by beekeepers in Great Britain

A - Papers appearing in refereed journals

Carreck, N. L., Williams, I. H. and Little, D. J. 1997. The movement of honey bee colonies for crop pollination and honey production by beekeepers in Great Britain. Bee World. 78, pp. 67-77.

Insect injury to linseed in south-east England

A - Papers appearing in refereed journals

Ferguson, A. W., Fitt, B. D. L. and Williams, I. H. 1997. Insect injury to linseed in south-east England. Crop Protection. 16 (7), pp. 643-652.

Optimization of pheromone dispensers for diamondback moth Plutella xylostella

A - Papers appearing in refereed journals

Mottus, E., Nomm, V., Williams, I. H. and Liblikas, I. 1997. Optimization of pheromone dispensers for diamondback moth Plutella xylostella. Journal of Chemical Ecology. 23, pp. 2145-2159.

Responses of Dasineura brassicae and its parasitoids Platygaster subuliformis and Omphale clypealis to field traps baited with organic isothiocyanates

A - Papers appearing in refereed journals

Murchie, A. K., Smart, L. E. and Williams, I. H. 1997. Responses of Dasineura brassicae and its parasitoids Platygaster subuliformis and Omphale clypealis to field traps baited with organic isothiocyanates. Journal of Chemical Ecology. 23, pp. 917-926.

The use of isoenzyme markers to determine pollen flow and seed paternity mediated by Apis mellifera and Bombus spp. in Trifolium repens , a self-incompatible plant species

A - Papers appearing in refereed journals

Michaelson-Yeates, T. P. T., Marshall, A. H., Williams, I. H., Carreck, N. L. and Simpkins, J. R. 1997. The use of isoenzyme markers to determine pollen flow and seed paternity mediated by Apis mellifera and Bombus spp. in Trifolium repens , a self-incompatible plant species. Journal of Apicultural Research. 36, pp. 57-62.

Extraction, isolation and composition of oviposition-deterring secretion of cabbage seed weevil Ceutorhynchus assimilis

A - Papers appearing in refereed journals

Mudd, A., Ferguson, A. W., Blight, M. M., Williams, I. H., Scubla, P., Solinas, M. and Clark, S. J. 1997. Extraction, isolation and composition of oviposition-deterring secretion of cabbage seed weevil Ceutorhynchus assimilis. Journal of Chemical Ecology. 23, pp. 2227-2240.

Siring efficiency in white clover (Trifolium repens )

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Marshall, A. H. and Michaelson-Yeates, T. P. T. 1997. Siring efficiency in white clover (Trifolium repens ). International Society of Horticultural Science (ISHS).

Effects of commercial insecticide treatments to winter oilseed rape on parasitism of Ceutorhynchus assimilis Paykull (Coleoptera: Curculionidae) by Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae)

A - Papers appearing in refereed journals

Murchie, A. K., Williams, I. H. and Alford, D. V. 1997. Effects of commercial insecticide treatments to winter oilseed rape on parasitism of Ceutorhynchus assimilis Paykull (Coleoptera: Curculionidae) by Trichomalus perfectus (Walker) (Hymenoptera: Pteromalidae). Crop Protection. 16, pp. 199-202.

Observations on two commercial flower mixtures as food sources for beneficial insects in the UK

A - Papers appearing in refereed journals

Carreck, N. L. and Williams, I. H. 1997. Observations on two commercial flower mixtures as food sources for beneficial insects in the UK. The Journal of Agricultural Science. 128, pp. 397-403.

Nectar and flower production in Vicia faba L. (field bean) at ambient and elevated carbon dioxide

A - Papers appearing in refereed journals

Osborne, J. L., Awmack, C. S., Clark, S. J., Williams, I. H. and Mills, V. C. 1997. Nectar and flower production in Vicia faba L. (field bean) at ambient and elevated carbon dioxide. Apidologie. 28, pp. 43-55.

Harmonic radar: a new technique for investigating bumblebee and honey bee foraging flight

C1 - Edited contributions to conferences/learned societies

Osborne, J. L., Williams, I. H., Carreck, N. L., Poppy, G. M., Riley, J. R., Smith, A. D., Reynolds, D. R. and Edwards, A. S. 1997. Harmonic radar: a new technique for investigating bumblebee and honey bee foraging flight. International Society of Horticultural Science (ISHS).

Performance of Cydia pomonella , Argyresthia conjugella , Plutella xylostella and Archips podana attractant dispensers in Estonia

C1 - Edited contributions to conferences/learned societies

Mottus, E., Liblikas, I., Williams, I. H., Kuusik, S., Laanmaa, M., Nilson, A. and Nomm, V. 1996. Performance of Cydia pomonella , Argyresthia conjugella , Plutella xylostella and Archips podana attractant dispensers in Estonia.

The use of harmonic radar to track insects flying at low altitude

C2 - Non-edited contributions to conferences

Riley, J. R., Smith, A. D., Reynolds, D. R., Edwards, A., Osborne, J. L., Williams, I. H., Carreck, N. L. and Poppy, G. M. 1996. The use of harmonic radar to track insects flying at low altitude. In Abstracts 5th European Conference on Wildlife Telemetry, Strasbourg, August 1996 .

The conservation of bees (Linnean Society Symposium series 18)

E - Books edited/written by staff member, alone/with others

Matheson, A., Buchmann, S. L., O'toole, C., Westrich, P. and Williams, I. H. 1996. The conservation of bees (Linnean Society Symposium series 18). Academic Press, London.

Putuktolmendajad kui tahtsaim loodusresurss bioloogilise mitme keisuse ja loodussaastliku pollukajanduse tagamisel

C2 - Non-edited contributions to conferences

Williams, I. H., Martin, A. J. and Mand, M. 1996. Putuktolmendajad kui tahtsaim loodusresurss bioloogilise mitme keisuse ja loodussaastliku pollukajanduse tagamisel. Abstracts Congress of Estonian Scientists, Tallinn, 11-15 August 1996 . pp. 395

Harmonic radar: a new technique for investigating bumble bee and honey bee foraging flight

C2 - Non-edited contributions to conferences

Osborne, J. L., Williams, I. H., Carreck, N. L., Poppy, G. M., Riley, J., Smith, A. D., Reynolds, D. R. and Edwards, A. 1996. Harmonic radar: a new technique for investigating bumble bee and honey bee foraging flight. Abstracts 7th International Pollination Symposium, Lethbridge, Canada, 23-28 June 1996 .

Nectar and flower production in Vicia faba L. (field bean) at elevated carbon dioxide

C2 - Non-edited contributions to conferences

Osborne, J. L., Awmack, C. S., Clark, S. J., Williams, I. H. and Mills, V. C. 1996. Nectar and flower production in Vicia faba L. (field bean) at elevated carbon dioxide. Abstracts 7th International Pollination Symposium, Lethbridge, Canada, 23-28 June 1996 .

Okokemikaalid kasutamiseks eesti taimekaitses

C2 - Non-edited contributions to conferences

Mottus, E., Liblikas, I., Williams, I. H., Nilson, A. and Laanmaa, M. 1996. Okokemikaalid kasutamiseks eesti taimekaitses. Abstracts Congress of Estonian Scientists, Tallinn, 11-15 August 1996 . pp. 370

Ecochemicals as attraction for diamondback moth (Plutella xylostella ) and cabbage root fly (Delia floralis )

C1 - Edited contributions to conferences/learned societies

Mottus, E., Liblikas, I., Nomm, V., Siitan, V., Williams, I. H. and Nilson, A. 1996. Ecochemicals as attraction for diamondback moth (Plutella xylostella ) and cabbage root fly (Delia floralis ).

A commercially viable, low-cost strategy for the management of seed weevil populations on winter oilseed rape in the UK

C1 - Edited contributions to conferences/learned societies

Alford, D. V., Walters, K. F. A., Williams, I. H. and Murchie, A. K. 1996. A commercially viable, low-cost strategy for the management of seed weevil populations on winter oilseed rape in the UK. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1996 . pp. 609-614

Aspects of bee diversity and crop pollination in the European Union

B - Book chapters etc edited externally

Williams, I. H. 1996. Aspects of bee diversity and crop pollination in the European Union. in: Matheson, A. (ed.) The conservation of bees (Linnean Society Symposium Series 18) Academic Press, London. pp. 63-80

Bumble bees as pollinators of crops and wild flowers

B - Book chapters etc edited externally

Osborne, J. L. and Williams, I. H. 1996. Bumble bees as pollinators of crops and wild flowers. in: Matheson, A. (ed.) Bumble bees for pleasure and profit International Bee Research Association, (IBRA), Cardiff. pp. 24-32

Tracking bees with harmonic radar

A - Papers appearing in refereed journals

Riley, J. R., Smith, A. D., Reynolds, D. R., Edwards, A. S., Osborne, J. L., Williams, I. H., Carreck, N. L. and Poppy, G. M. 1996. Tracking bees with harmonic radar. Nature. 379 (6560), pp. 29-30.

The use of isoenzymes to quantify the efficiency of insect pollinators in mediating pollen flow in white clover (Trifolium repens L.) seed crops and consequences for seed yield

C1 - Edited contributions to conferences/learned societies

Marshall, A. H., Michaelson-Yeates, T. P. T. and Williams, I. H. 1995. The use of isoenzymes to quantify the efficiency of insect pollinators in mediating pollen flow in white clover (Trifolium repens L.) seed crops and consequences for seed yield. Yield and Quality in Herbage Seed Production. Proceedings 3rd International Herbage Seed Conference, Halle, 18-23 June, 1995 . pp. 59-63

The status and potential of parasitoids of seed weevil and pod midge on winter oilseed rape. Home-Grown Cereals Authority Oilseeds Project Report OS14

D1 - Technical reports: non-confidential

Alford, D. V., Williams, I. H., Murchie, A. K. and Walters, K. F. A. 1995. The status and potential of parasitoids of seed weevil and pod midge on winter oilseed rape. Home-Grown Cereals Authority Oilseeds Project Report OS14. H-GCA, London.

Changes in growth and yield parameters of winter rape as a result of injury by the stem weevil (Ceutorhynchus quadridens )

C1 - Edited contributions to conferences/learned societies

Kelm, M., Walczak, M. and Williams, I. H. 1995. Changes in growth and yield parameters of winter rape as a result of injury by the stem weevil (Ceutorhynchus quadridens ). Rapeseed Today and Tomorrow. Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 . pp. 673-675

Responses of brassica pod midge (Dasineura brassicae ) and its parasitoids (Platygaster sp.) to isothiocyanates

C1 - Edited contributions to conferences/learned societies

Murchie, A. K., Williams, I. H. and Smart, L. E. 1995. Responses of brassica pod midge (Dasineura brassicae ) and its parasitoids (Platygaster sp.) to isothiocyanates. Rapeseed Today and Tomorrow. Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 . pp. 1028-1030

Field experiments to assess the status and importance of Trichomalus perfectus , a parasitoid of seed weevil on winter oilseed rape in the UK

C1 - Edited contributions to conferences/learned societies

Alford, D. V., Emmett, B. J., Green, M. R., Murchie, A. K., Williams, I. H., Raw, K. A. and Walters, K. F. A. 1995. Field experiments to assess the status and importance of Trichomalus perfectus , a parasitoid of seed weevil on winter oilseed rape in the UK. Rapeseed Today and Tomorrow. Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 . pp. 1301-1303

A history of beekeeping in Estonia

A - Papers appearing in refereed journals

Williams, I. H., Padjus, P., Parn, E., Rootslane, M. and Susi, J. 1995. A history of beekeeping in Estonia. Bee World. 76, pp. 18-30.

Observations on the impact of standard insecticide treatments of Trichomalus perfectus , a parasitoid of seed weevil on winter oilseed rape in the UK

C1 - Edited contributions to conferences/learned societies

Alford, D. V., Murchie, A. and Williams, I. H. 1995. Observations on the impact of standard insecticide treatments of Trichomalus perfectus , a parasitoid of seed weevil on winter oilseed rape in the UK.

Interactions between the cabbage seed weevil (Ceutorhynchus assimilis Payk.) and the brassica pod midge (Dasineura brassicae Winn.) infesting oilseed rape pods

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W., Kenward, M. G., Williams, I. H., Clark, S. J., Kelm, M. and Dudzic, A. 1995. Interactions between the cabbage seed weevil (Ceutorhynchus assimilis Payk.) and the brassica pod midge (Dasineura brassicae Winn.) infesting oilseed rape pods. Rapeseed Today and Tomorrow. Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 . pp. 679-681

The role of parasitoids

G - Articles in popular magazines and other technical publications

Williams, I. H. and Murchie, A. 1995. The role of parasitoids. Agronomist. Spring 1995, pp. 13-15.

Minimising pesticide input in oilseed rape by exploiting natural regulatory processes

C1 - Edited contributions to conferences/learned societies

Pickett, J. A., Butt, T. M., Doughty, K. J., Wallsgrove, R. M. and Williams, I. H. 1995. Minimising pesticide input in oilseed rape by exploiting natural regulatory processes. Rapeseed Today and Tomorrow: Proceedings 9th International Rapeseed Congress, Cambridge, 4-7 July 1995 .

An investigation of intra-crop and inter-crop contamination of white-flowered field beans

G - Articles in popular magazines and other technical publications

Williams, I. H. 1994. An investigation of intra-crop and inter-crop contamination of white-flowered field beans. Pea and Bean Progress. Summer, 1994, p. 9.

Antennal glands of Psylliodes chrysocephala and their possible role in reproductive behaviour

A - Papers appearing in refereed journals

Bartlet, E., Isidoro, N. and Williams, I. H. 1994. Antennal glands of Psylliodes chrysocephala and their possible role in reproductive behaviour. Physiological Entomology. 19 (4), pp. 241-250.

The dependence of crop production within the European Union on pollination by honey bees

A - Papers appearing in refereed journals

Williams, I. H. 1994. The dependence of crop production within the European Union on pollination by honey bees. Agricultural Science Reviews. 6, pp. 229-257.

Land use changes and honey bee forage plants

B - Book chapters etc edited externally

Williams, I. H. and Carreck, N. 1994. Land use changes and honey bee forage plants. in: Matheson, A. (ed.) Forage for bees in an agricultural landscape International Bee Research Association, (IBRA), Cardiff. pp. 7-20

Interaction between cabbage seed weevil (Ceutorhynchus assimilis payk.) and brassica pod midge (Dasineura brassicae Winn.) in oilseed rape pods (in Polish)

C1 - Edited contributions to conferences/learned societies

Kelm, M., Ferguson, A. W., Williams, I. H., Kenward, M. G. and Clark, S. J. 1994. Interaction between cabbage seed weevil (Ceutorhynchus assimilis payk.) and brassica pod midge (Dasineura brassicae Winn.) in oilseed rape pods (in Polish). Materialy XXXIV Sesji Naukowej Instytutu Ochrony Roslin, Poznan, 1994 . pp. 258-262

The influence of glucosinolates and sugars on feeding by the cabbage stem flea beetle, Psylliodes chrysocephala

A - Papers appearing in refereed journals

Bartlet, E., Parsons, D., Williams, I. H. and Clark, S. J. 1994. The influence of glucosinolates and sugars on feeding by the cabbage stem flea beetle, Psylliodes chrysocephala. Entomologia Experimentalis et Applicata. 73 (1), pp. 77-83.

Factors affecting growth and yield of winter oilseed rape (Brassica napus ), 1985-1989

A - Papers appearing in refereed journals

Leach, J. E., Darby, R. J., Williams, I. H., Fitt, B. D. L. and Rawlinson, C. J. 1994. Factors affecting growth and yield of winter oilseed rape (Brassica napus ), 1985-1989. The Journal of Agricultural Science. 122, pp. 405-413.

Seven decades of bee research at Rothamsted. A lecture given to the Central Association of Bee-keepers, 14th May 1993

G - Articles in popular magazines and other technical publications

Williams, I. H. 1994. Seven decades of bee research at Rothamsted. A lecture given to the Central Association of Bee-keepers, 14th May 1993.

Conclusions and recommendations of the European Community Workshop on Bees for Pollination held in Brussels, 1-2 March 1992

D1 - Technical reports: non-confidential

Williams, I. H. 1993. Conclusions and recommendations of the European Community Workshop on Bees for Pollination held in Brussels, 1-2 March 1992. Commission of the European Communities (CEC), Luxembourg.

The interdependence of agriculture and apiculture in the European Community

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1993. The interdependence of agriculture and apiculture in the European Community. Bruneau, E. (ed.) Bees for Pollination. Proceedings Workshop in the Community Programme of Research and Techological Development in the Field of Competitiveness of Agriculture and Management of Agricultural Resources (1989-1993), Brussels, March 1992 . Commission of the European Communities (CEC), Luxembourg. pp. 7-18

Nectar sources for honey bees and the movement of honey bee colonies for crop pollination and honey production in England

A - Papers appearing in refereed journals

Williams, I. H., Carreck, N. and Little, D. 1993. Nectar sources for honey bees and the movement of honey bee colonies for crop pollination and honey production in England. Bee World. 74, pp. 160-175.

Oil seed rape and beekeeping

B - Book chapters etc edited externally

Williams, I. H. 1993. Oil seed rape and beekeeping. in: Free, J. B. (ed.) Keeping bees Cardiff Academic Press, Cardiff. pp. 72-77

Host plant factors affecting the feeding of cabbage stem flea beetles (Psylliodes chrysocephala L.) on oilseed rape

C1 - Edited contributions to conferences/learned societies

Williams, I. H. and Bartlet, E. 1993. Host plant factors affecting the feeding of cabbage stem flea beetles (Psylliodes chrysocephala L.) on oilseed rape.

The responses of the cabbage seed weevil (Ceutorhynchus assimilis ) to the odour of oilseed rape (Brassica napus ) and to some volatile isothiocyanates

A - Papers appearing in refereed journals

Bartlet, E., Blight, M. M., Hick, A. J. and Williams, I. H. 1993. The responses of the cabbage seed weevil (Ceutorhynchus assimilis ) to the odour of oilseed rape (Brassica napus ) and to some volatile isothiocyanates. Entomologia Experimentalis et Applicata. 68 (3), pp. 295-302.

Studies of the oviposition deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.): behavioural bioassays and oviposition by weevils wintered in the laboratory.

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W. and Williams, I. H. 1993. Studies of the oviposition deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.): behavioural bioassays and oviposition by weevils wintered in the laboratory.

Rothamsted: cradle of agricultural and apicultural research 2. Bee research achievements

G - Articles in popular magazines and other technical publications

Williams, I. H., Ball, B. V., Tomkins, P. W. and Carreck, N. L. 1993. Rothamsted: cradle of agricultural and apicultural research 2. Bee research achievements. Bee World. 74, pp. 61-74.

Rothamsted: cradle of agricultural and apicultural research. Part 1: origins and development

G - Articles in popular magazines and other technical publications

Williams, I. H. 1993. Rothamsted: cradle of agricultural and apicultural research. Part 1: origins and development. Bee World. 73, pp. 20-26.

Apiculture for agriculture(3)

G - Articles in popular magazines and other technical publications

Williams, I. H. 1992. Apiculture for agriculture(3). Beekeeping. 58, pp. 202-204.

Apiculture for agriculture(2)

G - Articles in popular magazines and other technical publications

Williams, I. H. 1992. Apiculture for agriculture(2). Beekeeping. 58, pp. 172-174.

Apiculture for agriculture(1)

G - Articles in popular magazines and other technical publications

Williams, I. H. 1992. Apiculture for agriculture(1). Beekeeping. 58, pp. 148-150.

Apiculture for agriculture

G - Articles in popular magazines and other technical publications

Williams, I. H. 1992. Apiculture for agriculture. Beekeepers Quarterly. 31, pp. 14-21.

Mating behaviour and identification of the female sex pheromone gland in the brassica pod midge (Dasineura brassicae Winn.: Cecidomyidae, Diptera)

A - Papers appearing in refereed journals

Isidoro, N., Williams, I. H., Solinas, M. and Martin, A. 1992. Mating behaviour and identification of the female sex pheromone gland in the brassica pod midge (Dasineura brassicae Winn.: Cecidomyidae, Diptera). Bolletino Istituto Entomologia, Univ. Bologna. 47, pp. 27-48.

Les abeilles et la pollinisation des cultures et des fleurs sauvages dans la Communaute Europeene

A - Papers appearing in refereed journals

Corbet, S. A., Williams, I. H. and Osborne, J. L. 1992. Les abeilles et la pollinisation des cultures et des fleurs sauvages dans la Communaute Europeene. Apiacta. 27, pp. 105-108.

The behaviour of queen honeybees and their attendants

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1992. The behaviour of queen honeybees and their attendants. Physiological Entomology. 17 (1), pp. 43-55.

Host plant factors affecting the feeding of the cabbage stem flea beetle (Psylloides chrysocephala) on oilseed rape

C2 - Non-edited contributions to conferences

Williams, I. H. and Bartlet, E. 1992. Host plant factors affecting the feeding of the cabbage stem flea beetle (Psylloides chrysocephala) on oilseed rape. Proceedings OILB Meeting, Le Rhen, February 1992.

Response of the oilseed rape pests, Ceutorhynchus assimilis and Psylliodes chrysocephela, to a mixture of isothiocyanates

C1 - Edited contributions to conferences/learned societies

Bartlet, E., Williams, I. H., Blight, M. M. and Hick, A. J. 1992. Response of the oilseed rape pests, Ceutorhynchus assimilis and Psylliodes chrysocephela, to a mixture of isothiocyanates. Menken, S. B. J., Harrewijn, P. and Visser, J. H. (ed.) Proceedings 8th International Symposium on Insect-Plant Relationships. Kluwer Academic Publishers, Dordrecht, Netherlands. pp. 103-104

Bees have a vital role in agriculture

G - Articles in popular magazines and other technical publications

Ball, B. and Williams, I. H. 1992. Bees have a vital role in agriculture. The Agronomist. No 2, 1992, pp. 2-3.

Les abeilles et la pollinisation de cultures et de fleurs sauvages dans la Communaute Europeenne

G - Articles in popular magazines and other technical publications

Corbet, S. A., Williams, I. H. and Osborne, J. L. 1991. Les abeilles et la pollinisation de cultures et de fleurs sauvages dans la Communaute Europeenne. Les Carnets du Cari. 13, pp. 18-21.

Crop pollination and sustainable agriculture in the nineties and beyond

G - Articles in popular magazines and other technical publications

Williams, I. H. 1991. Crop pollination and sustainable agriculture in the nineties and beyond. Bee World. 72, pp. 45-46.

Bees and the pollination of crop and wild flowers: changes in the European Community: review commissioned by Scientific and Technical Options Assessment, European Parliament

D1 - Technical reports: non-confidential

Corbet, S. A., Williams, I. H. and Osborne, J. L. 1991. Bees and the pollination of crop and wild flowers: changes in the European Community: review commissioned by Scientific and Technical Options Assessment, European Parliament.

Insect pests of oilseed rape. HGCA oilseeds research review OS1

D1 - Technical reports: non-confidential

Alford, D. V., Cooper, D. A. and Williams, I. H. 1991. Insect pests of oilseed rape. HGCA oilseeds research review OS1. Home Grown Cereals Authority (HGCA) London.

Beekeeping, wild bees and pollination in the European Community

A - Papers appearing in refereed journals

Williams, I. H., Corbet, S. A. and Osborne, J. L. 1991. Beekeeping, wild bees and pollination in the European Community. Bee World. 72, pp. 170-180.

Bees, pollination and habitat change in the European Community

A - Papers appearing in refereed journals

Osborne, J. L., Williams, I. H. and Corbet, S. A. 1991. Bees, pollination and habitat change in the European Community. Bee World. 73, pp. 99-116.

Bees and the pollination of crop and wild flowers in the European Community

A - Papers appearing in refereed journals

Corbet, S. A., Williams, I. H. and Osborne, J. L. 1991. Bees and the pollination of crop and wild flowers in the European Community. Bee World. 72, pp. 47-59.

Floral phenology, pollination and fertilization in linseed

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1991. Floral phenology, pollination and fertilization in linseed. Production and Protection of Linseed. Aspects of Applied Biology .

Factors restricting the feeding of the cabbage stem flea beetle (Psylliodes chrysocephala)

A - Papers appearing in refereed journals

Bartlet, E. and Williams, I. H. 1991. Factors restricting the feeding of the cabbage stem flea beetle (Psylliodes chrysocephala). Entomologia Experimentalis et Applicata. 60 (3), pp. 233-238.

Incidence of pests and diseases and effects of crop protection on double- and single-low winter rape cultivars

C1 - Edited contributions to conferences/learned societies

Williams, I. H., Doughty, K. J., Bock, C. H. and Rawlinson, C. J. 1991. Incidence of pests and diseases and effects of crop protection on double- and single-low winter rape cultivars. Proceedings GCIRC 8th International Rapeseed Conference, Saskatoon Canada, 9-11 July 1991.

Research into the pollination of alternative crops at Rothamsted

G - Articles in popular magazines and other technical publications

Williams, I. H. 1991. Research into the pollination of alternative crops at Rothamsted.

Deposition and longevity of oviposition-deterring pheromone in the cabbage seed weevil

A - Papers appearing in refereed journals

Ferguson, A. W. and Williams, I. H. 1991. Deposition and longevity of oviposition-deterring pheromone in the cabbage seed weevil. Physiological Entomology. 16 (1), pp. 27-33.

Pests, diseases and effects of crop protection on single- and double-low winter rape

C1 - Edited contributions to conferences/learned societies

Rawlinson, C. J. and Williams, I. H. 1990. Pests, diseases and effects of crop protection on single- and double-low winter rape.

Queen discrimination by honeybee (Apis mellifera L) workers

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1990. Queen discrimination by honeybee (Apis mellifera L) workers. Apidologie. 21 (6), pp. 493-500.

Pollination requirements of linseed (Linum usitatissimum)

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. H. and Clark, S. J. 1990. Pollination requirements of linseed (Linum usitatissimum). The Journal of Agricultural Science. 115, pp. 347-352.

Effect of pollination on flower, pod and seed production in white lupin (Lupinus albus)

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. P., Ferguson, A. W. and Clark, S. J. 1990. Effect of pollination on flower, pod and seed production in white lupin (Lupinus albus). The Journal of Agricultural Science. 115, pp. 67-73..

Monitoring Dasineura brassicae by means of pheromone traps.

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1990. Monitoring Dasineura brassicae by means of pheromone traps.

A bibliography of the parasitoids of the brassica pod midge (Dasineura brassicae Winn).

C1 - Edited contributions to conferences/learned societies

Williams, I. H. and Walton, M. 1990. A bibliography of the parasitoids of the brassica pod midge (Dasineura brassicae Winn).

Honeybee responses to chemical components from the worker sting apparatus and mandibular glands in field tests.

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1990. Honeybee responses to chemical components from the worker sting apparatus and mandibular glands in field tests. Journal of Apicultural Research. 28, pp. 7-21.

The effect of different periods of brood isolation on subsequent brood-cell visits by worker honeybees (Apis mellifera L).

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1990. The effect of different periods of brood isolation on subsequent brood-cell visits by worker honeybees (Apis mellifera L). Journal of Apicultural Research. 28, pp. 22-25.

A new initiative in crop protection research on rape.

G - Articles in popular magazines and other technical publications

Rawlinson, C. J., Pickett, J. A., Shewry, P. R., Wilding, N. and Williams, I. H. 1989. A new initiative in crop protection research on rape. GCIRC Bulletin. 5, pp. 58-59.

Pheromone monitoring of Brassica pod midge (Dasineura brassicae Winn.).

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1989. Pheromone monitoring of Brassica pod midge (Dasineura brassicae Winn.). Proceedings of the 7th International Rapeseed Congress, Poznan, Poland, 1987, . pp. 1074-1076

Pest incidence on single low and double low oilseed rape cultivars.

C1 - Edited contributions to conferences/learned societies

Williams, I. H. 1989. Pest incidence on single low and double low oilseed rape cultivars. Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology .

Honeybee pollination of the double low oilseed rape cultivar Ariana.

C1 - Edited contributions to conferences/learned societies

Williams, I. H. and Simpkins, J. 1989. Honeybee pollination of the double low oilseed rape cultivar Ariana. Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology .

Oviposition-deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.)

C1 - Edited contributions to conferences/learned societies

Ferguson, A. W. and Williams, I. H. 1989. Oviposition-deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.). Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology .

Host plant selection by the cabbage stem flea beetle (Psylliodes chrysocephala ).

C1 - Edited contributions to conferences/learned societies

Bartlet, E. and Williams, I. H. 1989. Host plant selection by the cabbage stem flea beetle (Psylliodes chrysocephala ). Production and protection of oilseed rape and other brassica crops. Aspects of Applied Biology .

Glucosinolates in oilseed rape (Brassica napus) and the incidence of pollen beetles (Meligethes aeneus)

A - Papers appearing in refereed journals

Milford, G. F. J., Porter, A. J. R., Fieldsend, J. K., Miller, C. A., Leach, J. E. and Williams, I. H. 1989. Glucosinolates in oilseed rape (Brassica napus) and the incidence of pollen beetles (Meligethes aeneus). Annals of Applied Biology - AAB. 115 (2), pp. 375-380.

The pollination of linseed and flax.

G - Articles in popular magazines and other technical publications

Williams, I. H. 1988. The pollination of linseed and flax. Bee World. 69, pp. 145-152.

The phenology of the emergence of brassica pod midge (Dasineura brassicae Winn.) and its infestation of spring oil-seed rape (Brassica napus L.).

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. P. and Kelm, M. 1987. The phenology of the emergence of brassica pod midge (Dasineura brassicae Winn.) and its infestation of spring oil-seed rape (Brassica napus L.). The Journal of Agricultural Science. 109, pp. 309-314.

The phenology of the emergence of brassica pod midge (Dasineura brassicae Winn.) and its infestation of winter oil-seed rape (Brassica napus L.)

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. P. and Kelm, M. 1987. The phenology of the emergence of brassica pod midge (Dasineura brassicae Winn.) and its infestation of winter oil-seed rape (Brassica napus L.). The Journal of Agricultural Science. 108, pp. 579-589.

The pollination of lupins.

A - Papers appearing in refereed journals

Williams, I. H. 1987. The pollination of lupins. Bee World. 68, pp. 10-16.

The effect of insect pollination on plant development and seed production in winter oil-seed rape (Brassica napus L.).

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. P. and White, Robin P. 1987. The effect of insect pollination on plant development and seed production in winter oil-seed rape (Brassica napus L.). The Journal of Agricultural Science. 109, pp. 135-139.

Evidence for a female sex pheromone in the brassica pod midge Dasineura brassicae .

A - Papers appearing in refereed journals

Williams, I. H. and Martin, A. P. 1986. Evidence for a female sex pheromone in the brassica pod midge Dasineura brassicae . Physiological Entomology. 11 (3), pp. 353-356.

Using synthetic pheromone lures to attract honeybee colonies in Kenya.

A - Papers appearing in refereed journals

Kigatiira, I. K., Beament, J. W. L., Free, J. B. and Pickett, J. A. 1986. Using synthetic pheromone lures to attract honeybee colonies in Kenya. Journal of Apicultural Research. 25, pp. 85-86.

The pollination requirements of oil-seed rape (Brassica napus L.)

A - Papers appearing in refereed journals

Williams, I. H., Martin, A. P. and White, Robin P. 1986. The pollination requirements of oil-seed rape (Brassica napus L.). The Journal of Agricultural Science. 106 (1), pp. 27-30.

The pollination of swede rape (brassica-napus l)

A - Papers appearing in refereed journals

Williams, I. H. 1985. The pollination of swede rape (brassica-napus l). Bee World. 66 (1), pp. 16-22.

Adaptation of worker honeybees (apis-mellifera) to their alarm pheromones

A - Papers appearing in refereed journals

Alsaad, B. N., Free, J. B. and Howse, P. E. 1985. Adaptation of worker honeybees (apis-mellifera) to their alarm pheromones. Physiological Entomology. 10 (1), pp. 1-14.

Repelling foraging honeybees with alarm pheromones

A - Papers appearing in refereed journals

Free, J. B., Pickett, J. A., Ferguson, A. W., Simpkins, J. R. and Smith, M. C. 1985. Repelling foraging honeybees with alarm pheromones. The Journal of Agricultural Science. 105, pp. 255-260.

Influence of virgin queen honeybees (Apis mellifera ) on queen rearing and foraging.

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1985. Influence of virgin queen honeybees (Apis mellifera ) on queen rearing and foraging. Physiological Entomology. 10 (3), pp. 271-274.

Pheromones in the management of beneficial insects

A - Papers appearing in refereed journals

Dawson, G. W., Free, J. B., Griffiths, D. C., Powell, W., Williams, I. M. and Woodcock, C. M. 1984. Pheromones in the management of beneficial insects. Proceedings of the British Crop Protection Council. 1, pp. 247-254.

A synthetic pheromone lure useful for trapping stray honeybees

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1984. A synthetic pheromone lure useful for trapping stray honeybees. Journal of Apicultural Research. 23 (2), pp. 88-89.

Social insects - ecology and behavioral biology - brian,mv

A - Papers appearing in refereed journals

Williams, I. H. 1984. Social insects - ecology and behavioral biology - brian,mv. Nature. 308 (5956), pp. 300-300.

Influence of immature queen honeybees (apis-mellifera) on queen rearing and foraging

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Simpkins, J. R. 1984. Influence of immature queen honeybees (apis-mellifera) on queen rearing and foraging. Physiological Entomology. 9 (4), pp. 387-394.

Honeybee nasonov pheromone lure

A - Papers appearing in refereed journals

Free, J. B., Pickett, J. A., Ferguson, A. W., Simpkins, J. R. and Williams, C. 1984. Honeybee nasonov pheromone lure. Bee World. 65 (4), pp. 175-181.

The concentrations of air-borne rape pollen over a crop of oil-seed rape (brassica-napus l)

A - Papers appearing in refereed journals

Williams, I. H. 1984. The concentrations of air-borne rape pollen over a crop of oil-seed rape (brassica-napus l). The Journal of Agricultural Science. 103 (OCT), pp. 353-357.

The archaeology of beekeeping - crane,e

A - Papers appearing in refereed journals

Free, J. B. 1984. The archaeology of beekeeping - crane,e. Nature. 309 (5970), pp. 730-730.

Using foraging honeybees to sample an area for trace-metals

A - Papers appearing in refereed journals

Free, J. B., Williams, I. H., Pinsent, Rjfh, Townshend, A., Basi, M. S. and Graham, C. L. 1983. Using foraging honeybees to sample an area for trace-metals. Environment International. 9 (1), pp. 9-12.

A synthetic pheromone lure to induce worker honeybees to consume water and artificial forage

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Pickett, J. A. 1983. A synthetic pheromone lure to induce worker honeybees to consume water and artificial forage. Journal of Apicultural Research. 22 (4), pp. 224-228.

Scent-marking of flowers by honeybees

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1983. Scent-marking of flowers by honeybees. Journal of Apicultural Research. 22 (2), pp. 86-90.

The increasing need to control insect pests of oilseed rape in England

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Winfield, S. 1983. The increasing need to control insect pests of oilseed rape in England. Bee World. 64 (4), pp. 163-168.

Foraging behavior of honeybees on oilseed rape

A - Papers appearing in refereed journals

Free, J. B. and Ferguson, A. W. 1983. Foraging behavior of honeybees on oilseed rape. Bee World. 64 (1), pp. 22-24.

Foraging behavior of honeybees and bumble bees on brussels sprout grown to produce hybrid seed

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1983. Foraging behavior of honeybees and bumble bees on brussels sprout grown to produce hybrid seed. Journal of Apicultural Research. 22 (2), pp. 94-97.

Effect of various levels of infestation by the seed weevil (Ceutorhynchus assimilis Payk.) on the seed yield of oil-seed rape (Brassica napus L.)

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Winfield, S. 1983. Effect of various levels of infestation by the seed weevil (Ceutorhynchus assimilis Payk.) on the seed yield of oil-seed rape (Brassica napus L.). The Journal of Agricultural Science. 101 (DEC), pp. 589-596.

Effect of the components of the nasonov pheromone on its release by honeybees at the hive entrance

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Pickett, J. A. 1983. Effect of the components of the nasonov pheromone on its release by honeybees at the hive entrance. Journal of Apicultural Research. 22 (3), pp. 155-157.

Effect of honeybee nasonov and alarm pheromone components on behavior at the nest entrance

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W., Simpkins, J. R. and Alsaad, B. N. 1983. Effect of honeybee nasonov and alarm pheromone components on behavior at the nest entrance. Journal of Apicultural Research. 22 (4), pp. 214-223.

Brood recognition by honeybee (apis-mellifera) workers

A - Papers appearing in refereed journals

Free, J. B. and Winder, M. E. 1983. Brood recognition by honeybee (apis-mellifera) workers. Animal Behaviour. 31 (MAY), pp. 539-545.

(z)-11-eicosen-1-ol, an important new pheromonal component from the sting of the honey bee, apis-mellifera-l (hymenoptera, apidae)

A - Papers appearing in refereed journals

Pickett, J. A., Williams, I. H. and Martin, A. P. 1982. (z)-11-eicosen-1-ol, an important new pheromonal component from the sting of the honey bee, apis-mellifera-l (hymenoptera, apidae). Journal of Chemical Ecology. 8 (1), pp. 163-175.

Use of unpurified nasonov pheromone components to attract clustering honeybees

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W., Pickett, J. A. and Williams, I. H. 1982. Use of unpurified nasonov pheromone components to attract clustering honeybees. Journal of Apicultural Research. 21 (1), pp. 26-29.

Transfer of pheromone from immature queen honeybees, apis-mellifera

A - Papers appearing in refereed journals

Free, J. B. and Ferguson, A. W. 1982. Transfer of pheromone from immature queen honeybees, apis-mellifera. Physiological Entomology. 7 (4), pp. 401-406.

Nasonov pheromone of the honeybee - apis-mellifera-l (hymenoptera, apidae) .4. Comparative electroantennogram responses

A - Papers appearing in refereed journals

Williams, I. H., Pickett, J. A. and Martin, A. P. 1982. Nasonov pheromone of the honeybee - apis-mellifera-l (hymenoptera, apidae) .4. Comparative electroantennogram responses. Journal of Chemical Ecology. 8 (2), pp. 567-574.

Attractiveness of (Z)-11-eicosen-1-ol to foraging honeybees

A - Papers appearing in refereed journals

Free, J. B., Williams, I. H., Pickett, J. A., Ferguson, A. W. and Martin, A. P. 1982. Attractiveness of (Z)-11-eicosen-1-ol to foraging honeybees. Journal of Apicultural Research. 21 (3), pp. 151-156.

Biology and Behaviour of the Honeybee Apis Florea, and Possibilities for Beekeeping

A - Papers appearing in refereed journals

Free, J. B. 1981. Biology and Behaviour of the Honeybee Apis Florea, and Possibilities for Beekeeping. Bee World. 62 (2), pp. 46-59.

Synthetic pheromones to attract honeybee (apis-mellifera) swarms

A - Papers appearing in refereed journals

Free, J. B., Pickett, J. A., Ferguson, A. W. and Smith, M. C. 1981. Synthetic pheromones to attract honeybee (apis-mellifera) swarms. The Journal of Agricultural Science. 97 (OCT), pp. 427-431.

Solitary bees that inhabit walls

A - Papers appearing in refereed journals

Williams, I. H. 1981. Solitary bees that inhabit walls. Bee World. 62 (3), pp. 106-108.

The nasonov pheromone of the honeybee apis-mellifera l (hymenoptera, apidae) .2. Bioassay of the components using foragers

A - Papers appearing in refereed journals

Williams, I. H., Pickett, J. A. and Martin, A. P. 1981. The nasonov pheromone of the honeybee apis-mellifera l (hymenoptera, apidae) .2. Bioassay of the components using foragers. Journal of Chemical Ecology. 7 (2), pp. 225-237.

Nasonov pheromone of the honey bee, apis-mellifera l (hymenoptera, apidae) .3. Regulation of pheromone composition and production

A - Papers appearing in refereed journals

Pickett, J. A., Williams, I. H., Smith, M. C. and Martin, A. P. 1981. Nasonov pheromone of the honey bee, apis-mellifera l (hymenoptera, apidae) .3. Regulation of pheromone composition and production. Journal of Chemical Ecology. 7 (3), pp. 543-554.

Factors determining the release of nasonov pheromone by honeybees at the hive entrance

A - Papers appearing in refereed journals

Ferguson, A. W. and Free, J. B. 1981. Factors determining the release of nasonov pheromone by honeybees at the hive entrance. Physiological Entomology. 6 (1), pp. 15-19.

Evaluation of the various components of the nasonov pheromone used by clustering honeybees

A - Papers appearing in refereed journals

Free, J. B., Ferguson, A. W. and Pickett, J. A. 1981. Evaluation of the various components of the nasonov pheromone used by clustering honeybees. Physiological Entomology. 6 (3), pp. 263-268.

Biology and behavior of the honeybee apis florea, and possibilities for beekeeping

A - Papers appearing in refereed journals

Free, J. B. 1981. Biology and behavior of the honeybee apis florea, and possibilities for beekeeping. Bee World. 62 (2), pp. 46-59.

Attraction of honey bees to flowering plants by using synthetic nasonov pheromone

A - Papers appearing in refereed journals

Williams, I. H., Pickett, J. A. and Martin, A. P. 1981. Attraction of honey bees to flowering plants by using synthetic nasonov pheromone. Entomologia Experimentalis et Applicata. 30 (2), pp. 199-201.

The attachment of honeybee comb to sloping hive sides and side-bars of frames

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1981. The attachment of honeybee comb to sloping hive sides and side-bars of frames. Journal of Apicultural Research. 20 (4), pp. 239-242.

The value of white clover Trifolium repens L., Cultivar S100 planted on motorway verges to honeybees Apis mellifera L.

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1980. The value of white clover Trifolium repens L., Cultivar S100 planted on motorway verges to honeybees Apis mellifera L. Biological Conservation. 18 (2), pp. 89-92.

Using bees to pollinate crops

A - Papers appearing in refereed journals

Free, J. B. 1980. Using bees to pollinate crops. Span. 23 (1), pp. 23-26.

Queen pheromone transfer within honeybee colonies

A - Papers appearing in refereed journals

Ferguson, A. W. and Free, J. B. 1980. Queen pheromone transfer within honeybee colonies. Physiological Entomology. 5 (4), pp. 359-366.

Performance and uptake of some carbendazim-producing fungicides applied as seed treatments to spring barley, in relation to their physicochemical properties

A - Papers appearing in refereed journals

Grahambryce, I. J., Nicholls, P. H. and Williams, I. H. 1980. Performance and uptake of some carbendazim-producing fungicides applied as seed treatments to spring barley, in relation to their physicochemical properties. Pesticide Science. 11 (1), pp. 1-8.

Oil-seed rape and beekeeping, particularly in Britain

A - Papers appearing in refereed journals

Williams, I. H. 1980. Oil-seed rape and beekeeping, particularly in Britain. Bee World. 61 (4), pp. 141-153.

Foraging of bees on oil-seed rape (brassica-napus l) in relation to the stage of flowering of the crop and pest-control

A - Papers appearing in refereed journals

Free, J. B. and Ferguson, A. W. 1980. Foraging of bees on oil-seed rape (brassica-napus l) in relation to the stage of flowering of the crop and pest-control. The Journal of Agricultural Science. 94 (FEB), pp. 151-154.

Differences in food-consumption of caged honeybees from different colonies

A - Papers appearing in refereed journals

Free, J. B. 1980. Differences in food-consumption of caged honeybees from different colonies. Journal of Apicultural Research. 19 (2), pp. 112-114.

Nasonov pheromone of the honey bee, apis-mellifera l (hymenoptera, apidae) .1. Chemical characterization

A - Papers appearing in refereed journals

Pickett, J. A., Williams, I. H., Martin, A. P. and Smith, M. C. 1980. Nasonov pheromone of the honey bee, apis-mellifera l (hymenoptera, apidae) .1. Chemical characterization. Journal of Chemical Ecology. 6 (2), pp. 425-434.

Progress towards the use of pheromones to stimulate pollination by honey bees

A - Papers appearing in refereed journals

Free, J. B. 1979. Progress towards the use of pheromones to stimulate pollination by honey bees. Proceedings 4th International Symposium on Pollination Md Agricultural Experimental Station Miscellaneous Publication. 1, pp. 7-22.

Techniques for studying honeybee pheromones involved in clustering, and experiments on the effect of nasonov and queen pheromones

A - Papers appearing in refereed journals

Ferguson, A. W., Free, J. B., Pickett, J. A. and Winder, M. 1979. Techniques for studying honeybee pheromones involved in clustering, and experiments on the effect of nasonov and queen pheromones. Physiological Entomology. 4 (4), pp. 339-344.

Production of a forage-marking pheromone by the honeybee

A - Papers appearing in refereed journals

Ferguson, A. W. and Free, J. B. 1979. Production of a forage-marking pheromone by the honeybee. Journal of Apicultural Research. 18 (2), pp. 128-135.

Modern silversmith who fashions bees

A - Papers appearing in refereed journals

Free, J. B. 1979. Modern silversmith who fashions bees. American bee journal. 119 (1), pp. 33-33.

Managing honeybee colonies to enhance the pollen-gathering stimulus from brood pheromones

A - Papers appearing in refereed journals

Free, J. B. 1979. Managing honeybee colonies to enhance the pollen-gathering stimulus from brood pheromones. Applied Animal Ethology. 5 (2), pp. 173-178.

Infestation of crops of oil-seed rape (brassica-napus l) by insect pests

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1979. Infestation of crops of oil-seed rape (brassica-napus l) by insect pests. The Journal of Agricultural Science. 92 (FEB), pp. 203-218.

Distribution of insect pests on crops of oil-seed rape (brassica-napus l) and the damage they cause

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1979. Distribution of insect pests on crops of oil-seed rape (brassica-napus l) and the damage they cause. The Journal of Agricultural Science. 92 (FEB), pp. 139-149.

Compensation of oil-seed rape (brassica-napus l) plants after damage to their buds and pods

A - Papers appearing in refereed journals

Williams, I. H. and Free, J. B. 1979. Compensation of oil-seed rape (brassica-napus l) plants after damage to their buds and pods. The Journal of Agricultural Science. 92 (FEB), pp. 53-59.

Beekeeping in the sultanate of oman

A - Papers appearing in refereed journals

Williams, I. H. 1979. Beekeeping in the sultanate of oman. American bee journal. 119 (7), pp. 510-&.

Unusual behavior of bumble bees

A - Papers appearing in refereed journals

Free, J. B. 1978. Unusual behavior of bumble bees. Bee World. 59 (3), pp. 114-115.

Survey of damage caused to crops of oil-seed rape (brassica-napus-l) by insect pests in south-central England and their effect on seed yield

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1978. Survey of damage caused to crops of oil-seed rape (brassica-napus-l) by insect pests in south-central England and their effect on seed yield. The Journal of Agricultural Science. 90 (APR), pp. 417-424.

Responses of the pollen beetle, meligethes-aeneus, and the seed weevil, ceuthorhynchus-assimilis, to oil-seed rape, brassica-napus, and other plants

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1978. Responses of the pollen beetle, meligethes-aeneus, and the seed weevil, ceuthorhynchus-assimilis, to oil-seed rape, brassica-napus, and other plants. Journal of Applied Ecology. 15 (3), pp. 761-&.

Pollination requirements of swede rape (brassica-napus l) and of turnip rape (brassica-campestris l)

A - Papers appearing in refereed journals

Williams, I. H. 1978. Pollination requirements of swede rape (brassica-napus l) and of turnip rape (brassica-campestris l). The Journal of Agricultural Science. 91 (OCT), pp. 343-348.

The construction and use of comb in a honeybee colony

A - Papers appearing in refereed journals

Free, J. B. 1977. The construction and use of comb in a honeybee colony. Report of the Central Association of Beekeepers.

Behavior of insects foraging on pigeon pea (cajanus-cajan-(l) millsp) in india

A - Papers appearing in refereed journals

Williams, I. H. 1977. Behavior of insects foraging on pigeon pea (cajanus-cajan-(l) millsp) in india. Tropical Agriculture. 54 (4), pp. 353-363.

Insect pollination of tropical crops

A - Papers appearing in refereed journals

Free, J. B. 1976. Insect pollination of tropical crops. Report of the Central Association of Beekeepers.

The effect on the foraging behaviour of honeybees of the relative locations of the hive entrance and brood combs

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1976. The effect on the foraging behaviour of honeybees of the relative locations of the hive entrance and brood combs. Applied Animal Ethology. 2 (2), pp. 141-154.

Pollination as a factor limiting yield of field beans (vicia-faba-l)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1976. Pollination as a factor limiting yield of field beans (vicia-faba-l). The Journal of Agricultural Science. 87 (OCT), pp. 395-399.

Insect pollination of Anacardium occidentale L., Mangifera indica L., Blighia sapida Koenig and Persea americana Mill.

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1976. Insect pollination of Anacardium occidentale L., Mangifera indica L., Blighia sapida Koenig and Persea americana Mill. Tropical Agriculture. 53 (2), pp. 125-139.

High-pressure liquid-chromatography of benzimidazoles

A - Papers appearing in refereed journals

Austin, D. J., Lord, K. A. and Williams, I. H. 1976. High-pressure liquid-chromatography of benzimidazoles. Pesticide Science. 7 (2), pp. 211-222.

The behaviour of xylocopa mordax foraging on ipomoca nil

A - Papers appearing in refereed journals

Free, J. B. 1975. The behaviour of xylocopa mordax foraging on ipomoca nil. Bee World. 56 (3), p. 121.

Pollination of Capsicum frutescens L., Capsicum annuum L. and Solanum melongena L.(Solanaceae) in Jamaica

A - Papers appearing in refereed journals

Free, J. B. 1975. Pollination of Capsicum frutescens L., Capsicum annuum L. and Solanum melongena L.(Solanaceae) in Jamaica. Journal of faculty of agriculture (Imperial College of Tropical Agriculture) University of West Indies. 52 (4), pp. 343-357.

Beneficial insects present on a motorway verge

A - Papers appearing in refereed journals

Free, J. B., Gennard, D., Stevenson, J. H. and Williams, I. H. 1975. Beneficial insects present on a motorway verge. Biological Conservation. 8 (1), pp. 61-72.

Pollination of coconut (Cocos nucifera L.) in Jamaica by honeybees and wasps

A - Papers appearing in refereed journals

Free, J. B., Raw, A. and Williams, I. H. 1975. Pollination of coconut (Cocos nucifera L.) in Jamaica by honeybees and wasps. 1 (3), pp. 213-223.

Pollination of capsicum-frutescens l, capsicum-annuum l and solanum-melongena-l (solanaceae) in Jamaica

A - Papers appearing in refereed journals

Free, J. B. 1975. Pollination of capsicum-frutescens l, capsicum-annuum l and solanum-melongena-l (solanaceae) in Jamaica. Tropical Agriculture. 52 (4), pp. 353-357.

Pollination and set of early flowers of runner bean (phaseolus-coccineus l)

A - Papers appearing in refereed journals

Williams, I. H. and Free, J. B. 1975. Pollination and set of early flowers of runner bean (phaseolus-coccineus l). Journal of Horticultural Science. 50 (4), pp. 405-413.

Observations on pollination of papaya (carica-papaya l) in Jamaica

A - Papers appearing in refereed journals

Free, J. B. 1975. Observations on pollination of papaya (carica-papaya l) in Jamaica. Tropical Agriculture. 52 (3), pp. 275-279.

Insect pollination of sugar-beet (beta-vulgaris) seed crops

A - Papers appearing in refereed journals

Free, J. B., Williams, I. H., Longden, P. C. and Johnson, M. G. 1975. Insect pollination of sugar-beet (beta-vulgaris) seed crops. Annals of Applied Biology - AAB. 81 (2), pp. 127-134.

Factors determining rearing and rejection of drones by honeybee colony

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1975. Factors determining rearing and rejection of drones by honeybee colony. Animal Behaviour. 23 (AUG), pp. 650-675.

Effect of environmental conditions during larval period on tendency of worker honeybees to develop their ovaries

A - Papers appearing in refereed journals

Williams, I. H. and Free, J. B. 1975. Effect of environmental conditions during larval period on tendency of worker honeybees to develop their ovaries. Journal of Entomology Series A-Physiology & Behaviour. 49 (MAR25), pp. 179-182.

Pollination of self-fertile apple-trees

A - Papers appearing in refereed journals

Free, J. B., Smith, B. D., Stott, K. G. and Williams, I. H. 1974. Pollination of self-fertile apple-trees. Journal Of Horticultural Science & Biotechnology. 49 (3), pp. 301-304.

Pollination of onion (allium-cepa l) to produce hybrid seed

A - Papers appearing in refereed journals

Williams, I. H. and Free, J. B. 1974. Pollination of onion (allium-cepa l) to produce hybrid seed. Journal of Applied Ecology. 11 (2), pp. 409-417.

Influence of location of honeybee colonies on their choice of pollen sources

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1974. Influence of location of honeybee colonies on their choice of pollen sources. Journal of Applied Ecology. 11 (3), pp. 925-935.

Factors determining food storage and brood rearing in honeybee (apis-mellifera l) comb

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1974. Factors determining food storage and brood rearing in honeybee (apis-mellifera l) comb. Journal of Entomology Series A-Physiology & Behaviour. 49 (NOV7), pp. 47-63.

Current and future developments in pollination practice and research

A - Papers appearing in refereed journals

Free, J. B. 1973. Current and future developments in pollination practice and research. Report of the Central Association of Beekeepers.

Pollination of hybrid kale (brassica-oleraceae l)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1973. Pollination of hybrid kale (brassica-oleraceae l). The Journal of Agricultural Science. 81 (DEC), pp. 557-559.

Genetic determination of honeybee (apis-mellifera l) foraging preferences

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1973. Genetic determination of honeybee (apis-mellifera l) foraging preferences. Annals of Applied Biology - AAB. 73 (2), pp. 137-141.

Foraging behavior of honeybees (apis-mellifera-l) on brussels sprout (brassica-oleracea l)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1973. Foraging behavior of honeybees (apis-mellifera-l) on brussels sprout (brassica-oleracea l). Journal of Applied Ecology. 10 (2), pp. 489-499.

The influence of a Honeybee (Apis Mellifera) colony on egg-laying by its Queen

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1972. The influence of a Honeybee (Apis Mellifera) colony on egg-laying by its Queen. Entomologia Experimentalis et Applicata. 15 (2), pp. 224-228.

The role of the Nasonov gland pheromone in crop communication by honeybees (Apis mellifera L.)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1972. The role of the Nasonov gland pheromone in crop communication by honeybees (Apis mellifera L.). Behaviour. 41 (3/4), pp. 314-318.

Hoarding by honeybees (Apis mellifera L.)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1972. Hoarding by honeybees (Apis mellifera L.). Animal Behaviour. 20 (2), pp. 327-334.

The transport of pollen on the body hairs of honeybees (Apis mellifera L.) and bumblebees (Bombus spp. L.)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1972. The transport of pollen on the body hairs of honeybees (Apis mellifera L.) and bumblebees (Bombus spp. L.). Journal of Applied Ecology. 9 (2), pp. 609-615.

Stimuli Eliciting Mating Behaviour of Bumblebee (Bomb Us Pratoruml.) Males

A - Papers appearing in refereed journals

Free, J. B. 1971. Stimuli Eliciting Mating Behaviour of Bumblebee (Bomb Us Pratoruml.) Males. Behaviour. 40 (1/2), pp. 55-61.

The effect of giving pollen and pollen supplement to honeybee colonies on the amount of pollen collected

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1971. The effect of giving pollen and pollen supplement to honeybee colonies on the amount of pollen collected. Journal of Apicultural Research. 10 (2), pp. 87-90.

Effect of flower shapes and nectar guides on the behaviour of foraging honeybees

A - Papers appearing in refereed journals

Free, J. B. 1970. Effect of flower shapes and nectar guides on the behaviour of foraging honeybees. Behaviour. 37 (3/4), pp. 269-285.

The flower constancy of bumblebees

A - Papers appearing in refereed journals

Free, J. B. 1970. The flower constancy of bumblebees. Journal of Animal Ecology. 39 (2), pp. 395-402.

The behaviour of wasps (Vespula germanica L. andV. Vulgaris L.) when foraging

A - Papers appearing in refereed journals

Free, J. B. 1970. The behaviour of wasps (Vespula germanica L. andV. Vulgaris L.) when foraging. Insectes Sociaux. 17 (1), pp. 11-19.

The behaviour of wasps (Vespula germanica L. andV. Vulgaris L.) when foraging

A - Papers appearing in refereed journals

Free, J. B. 1970. The behaviour of wasps (Vespula germanica L. andV. Vulgaris L.) when foraging. Insectes Sociaux. 17 (1), pp. 11-19.

Preliminary investigations on the occupation of artificial nests by Osmia rufa L.(Hymenoptera, Megachilidae)

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1970. Preliminary investigations on the occupation of artificial nests by Osmia rufa L.(Hymenoptera, Megachilidae). Journal of Applied Ecology. 7 (3), pp. 559-566.

Exposure of the Nasonov gland by honeybees (Apis mellifera) collecting water

A - Papers appearing in refereed journals

Free, J. B. and Williams, I. H. 1970. Exposure of the Nasonov gland by honeybees (Apis mellifera) collecting water. Behaviour. 37 (3/4), pp. 286-290.

Influence of the odour of a honeybee colony's food stores on the behaviour of its foragers

A - Papers appearing in refereed journals

Free, J. B. 1969. Influence of the odour of a honeybee colony's food stores on the behaviour of its foragers. Nature. 222 (5195), p. 778.

The egg-eating behaviour of Bombus lapidarius L.

A - Papers appearing in refereed journals

Free, J. B., Weinberg, I. and Whiten, A. 1969. The egg-eating behaviour of Bombus lapidarius L. Behaviour. 35 (3-4), pp. 313-317.

The effect of the size of a honeybee colony on its foraging activity

A - Papers appearing in refereed journals

Free, J. B. and Preece, D. A. 1969. The effect of the size of a honeybee colony on its foraging activity. Insectes Sociaux. 16 (1), pp. 73-77.

The Foraging Behaviour of Honeybees (Apis mellifera) and Bumblebees (Bombus Spp.) on Blackcurrant (Ribes nigrum), Raspberry (Rubus idaeus) and Strawberry (Fragaria × Ananassa) Flowers

A - Papers appearing in refereed journals

Free, J. B. 1968. The Foraging Behaviour of Honeybees (Apis mellifera) and Bumblebees (Bombus Spp.) on Blackcurrant (Ribes nigrum), Raspberry (Rubus idaeus) and Strawberry (Fragaria × Ananassa) Flowers. Journal of Applied Ecology. 5 (1), pp. 157-168.

The pollination of strawberries by honey-bees

A - Papers appearing in refereed journals

Free, J. B. 1968. The pollination of strawberries by honey-bees. Journal of Horticultural Science. 43 (1), pp. 107-111.

The pollination of black currants

A - Papers appearing in refereed journals

Free, J. B. 1968. The pollination of black currants. Journal of Horticultural Science. 43 (1), pp. 69-73.

Studies on the seasonal changes in the activities of honeybee colonies

A - Papers appearing in refereed journals

Free, J. B. 1968. Studies on the seasonal changes in the activities of honeybee colonies. A lecture given to the Central Association of Beekeepers on 14th February 1968. February (14th), p. 12pp.

Dandelion as a competitor to fruit trees for bee visits

A - Papers appearing in refereed journals

Free, J. B. 1968. Dandelion as a competitor to fruit trees for bee visits. Journal of Applied Ecology. 5 (1), pp. 169-178.

The conditions under which foraging honeybees expose their Nasonov gland

A - Papers appearing in refereed journals

Free, J. B. 1968. The conditions under which foraging honeybees expose their Nasonov gland. Journal of Apicultural Research. 7 (3), pp. 139-145.

Engorging of honey by worker honeybees when their colony is smoked

A - Papers appearing in refereed journals

Free, J. B. 1968. Engorging of honey by worker honeybees when their colony is smoked. Journal of Apicultural Research. 7 (3), pp. 135-138.

The behaviour of bees visiting runner beans (Phaseolus multiflorus)

A - Papers appearing in refereed journals

Free, J. B. 1968. The behaviour of bees visiting runner beans (Phaseolus multiflorus). Journal of Applied Ecology. 5 (3), pp. 631-638.

The Pollination of Runner Beans (Phaseolus Multiflorus) in a Glasshouse

A - Papers appearing in refereed journals

Free, J. B. and Racey, P. A. 1968. The Pollination of Runner Beans (Phaseolus Multiflorus) in a Glasshouse. Journal of Apicultural Research. 7 (2), pp. 67-69.

The effect of the size of honeybee colonies on food consumption, brood rearing and the longevity of the bees during winter

A - Papers appearing in refereed journals

Free, J. B. and Racey, P. A. 1968. The effect of the size of honeybee colonies on food consumption, brood rearing and the longevity of the bees during winter. Entomologia Experimentalis et Applicata. 11 (2), pp. 241-249.

The alerting pheromones of the honeybee

A - Papers appearing in refereed journals

Free, J. B. and Simpson, J. 1968. The alerting pheromones of the honeybee. Zeitschrift fur vergleichende Physiologie. 61 (3), pp. 361-365.

The pollination of oilseed rape (Brassica napus) and the behaviour of bees on the crop

A - Papers appearing in refereed journals

Free, J. B. and Nuttall, P. M. 1968. The pollination of oilseed rape (Brassica napus) and the behaviour of bees on the crop. The Journal of Agricultural Science. 71 (1), pp. 91-94.

Effect of the time of day at which honeybee colonies are first allowed flight in a new location on their choice of flower species

A - Papers appearing in refereed journals

Free, J. B. and Nuttall, P. M. 1968. Effect of the time of day at which honeybee colonies are first allowed flight in a new location on their choice of flower species. Nature. 218 (982), p. 982.

The production of drone comb by honeybee colonies

A - Papers appearing in refereed journals

Free, J. B. 1967. The production of drone comb by honeybee colonies. Journal of Apicultural Research. 6 (1), pp. 29-36.

Factors determining the collection of pollen by honeybee foragers.

A - Papers appearing in refereed journals

Free, J. B. 1967. Factors determining the collection of pollen by honeybee foragers. Animal Behaviour. 51 (1), pp. 134-144.

Seasonal regulations in the honeybee colony

B - Book chapters etc edited externally

Free, J. B. 1967. Seasonal regulations in the honeybee colony. in: Kalmus, H. (ed.) Regulation and control in living systems London Wiley. pp. 351-379

Recent discoveries about honeybee behaviour that have possible application to bee keeping

A - Papers appearing in refereed journals

Free, J. B. 1967. Recent discoveries about honeybee behaviour that have possible application to bee keeping. American bee journal. 107 (12), pp. 448-450.

The effect on honeybee mortality of applying insecticides as sprays or granules to flowering field beans

A - Papers appearing in refereed journals

Free, J. B., Needham, P. H., Racey, P. A. and Stevenson, J. H. 1967. The effect on honeybee mortality of applying insecticides as sprays or granules to flowering field beans. Journal of the Science of Food and Agriculture - jsfa. 18 (4), pp. 133-138.

Studies on the honeybee pollination of fruit flowers

A - Papers appearing in refereed journals

Free, J. B. 1966. Studies on the honeybee pollination of fruit flowers. Bee World. 47 (1 supplement).

The foraging areas of honeybees in an orchard of standard apple trees

A - Papers appearing in refereed journals

Free, J. B. 1966. The foraging areas of honeybees in an orchard of standard apple trees. Journal of Applied Ecology. 3 (2), pp. 261-268.

The Pollination of the Beans Phaseolus Multiflorus and Phaseolus Vulgaris by Honeybees

A - Papers appearing in refereed journals

Free, J. B. 1966. The Pollination of the Beans Phaseolus Multiflorus and Phaseolus Vulgaris by Honeybees. Journal of Apicultural Research. 5 (2), pp. 87-91.

The pollination requirements of broad beans and field beans (Vicia faba)

A - Papers appearing in refereed journals

Free, J. B. 1966. The pollination requirements of broad beans and field beans (Vicia faba). The Journal of Agricultural Science. 66 (3), pp. 395-397.

The pollinating efficiency of honey-bee visits to apple flowers

A - Papers appearing in refereed journals

Free, J. B. 1966. The pollinating efficiency of honey-bee visits to apple flowers. Journal of Horticultural Science. 41, pp. 91-94.

The Pollination of Freesia Refracta in Glasshouses

A - Papers appearing in refereed journals

Free, J. B. and Racey, P. A. 1966. The Pollination of Freesia Refracta in Glasshouses. Journal of Apicultural Research. 5 (3), pp. 177-182.

The transport of pollen by honey-bees from one foraging trip to the next

A - Papers appearing in refereed journals

Free, J. B. and Durrant, A. J. 1966. The transport of pollen by honey-bees from one foraging trip to the next. Journal of Horticultural Science. 41 (1), pp. 87-89.

The dilution and evaporation of the honey-stomach contents of honeybees at different temperatures

A - Papers appearing in refereed journals

Free, J. B. and Durrant, A. J. 1966. The dilution and evaporation of the honey-stomach contents of honeybees at different temperatures. 5 (1), pp. 3-8.

The foraging behaviour of bees and its effect on the isolation and speciation of plants

A - Papers appearing in refereed journals

Free, J. B. 1965. The foraging behaviour of bees and its effect on the isolation and speciation of plants. Botanical Society of the British Isles Conference Reports No 9 Reproductive biology and taxonomy of vascular plants. (9), pp. 76-92.

Attempts to increase pollination by spraying crops with sugar syrup

A - Papers appearing in refereed journals

Free, J. B. 1965. Attempts to increase pollination by spraying crops with sugar syrup. Journal of Apicultural Research. 4 (1), pp. 61-64.

The effect on pollen collection of feeding honey-bee colonies with sugar syrup

A - Papers appearing in refereed journals

Free, J. B. 1965. The effect on pollen collection of feeding honey-bee colonies with sugar syrup. The Journal of Agricultural Science. 64 (2), pp. 167-168.

The behaviour of honeybee foragers when their colonies are fed sugar syrup

A - Papers appearing in refereed journals

Free, J. B. 1965. The behaviour of honeybee foragers when their colonies are fed sugar syrup. Journal of Apicultural Research. 4 (2), pp. 85-88.

The allocation of duties among worker honeybees

A - Papers appearing in refereed journals

Free, J. B. 1965. The allocation of duties among worker honeybees. Sympsia - Zoological Society of London. 14, pp. 39-59.

The ability of bumblebees and honeybees to pollinate red clover

A - Papers appearing in refereed journals

Free, J. B. 1965. The ability of bumblebees and honeybees to pollinate red clover. Journal of Applied Ecology. 2, pp. 289-294.

The behaviour of honeybees on sunflowers (Helianthus annuus L.)

A - Papers appearing in refereed journals

Free, J. B. 1964. The behaviour of honeybees on sunflowers (Helianthus annuus L.). Journal of Applied Ecology. 1 (1), pp. 19-27.

The allocation of duties among worker honeybees

A - Papers appearing in refereed journals

Free, J. B. 1964. The allocation of duties among worker honeybees. Animal Behaviour. 12, pp. 389-390.

Honeybees play an important role in orchard fruit set

A - Papers appearing in refereed journals

Free, J. B. 1964. Honeybees play an important role in orchard fruit set. Commercial grower. April (10th).

Comparison of the importance of insect and wind pollination of apple trees

A - Papers appearing in refereed journals

Free, J. B. 1964. Comparison of the importance of insect and wind pollination of apple trees. Nature. 201 (4920), p. 726–727.

The pollination requirements of sunflower (Helianthus annuus L)

A - Papers appearing in refereed journals

Free, J. B. and Simpson, J. 1964. The pollination requirements of sunflower (Helianthus annuus L). Empire Journal of Experimental Agriculture. 32 (128), pp. 340-342.

The effect of distance from pollinizer varieties on the fruit set of apple, pear and sweet-cherry trees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1964. The effect of distance from pollinizer varieties on the fruit set of apple, pear and sweet-cherry trees. Journal of Horticultural Science. 39 (1), pp. 54-60.

The flower constancy of bumblebees

A - Papers appearing in refereed journals

Free, J. B. 1963. The flower constancy of bumblebees. Journal of Animal Ecology. 32 (1), pp. 119-131.

The respiratory metabolism of honey-bee colonies at low temperatures

A - Papers appearing in refereed journals

Free, J. B. and Simpson, J. 1963. The respiratory metabolism of honey-bee colonies at low temperatures. Entomologia Experimentalis et Applicata. 6 (3), pp. 234-238.

The pollination of mustard by honeybees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1963. The pollination of mustard by honeybees. Journal of Apicultural Research. 2 (1), pp. 69-70.

The foraging behaviour of honeybees in an orchard of dwarf apple trees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1963. The foraging behaviour of honeybees in an orchard of dwarf apple trees. Journal of Horticultural Science. 39 (2), pp. 78-83.

The foraging areas of honey-bee colonies in fruit orchards

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1963. The foraging areas of honey-bee colonies in fruit orchards. Journal of Horticultural Science. 38 (2), pp. 129-137.

The effect of examining honeybee colonies on their subsequent foraging activity

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1963. The effect of examining honeybee colonies on their subsequent foraging activity. Journal of Apicultural Research. 2 (1), pp. 67-68.

The attractiveness of geraniol to foraging honeybees

A - Papers appearing in refereed journals

Free, J. B. 1962. The attractiveness of geraniol to foraging honeybees. Journal of Apicultural Research. 1 (1), pp. 52-54.

The behaviour of honeybees visiting field beans (Vicia faba)

A - Papers appearing in refereed journals

Free, J. B. 1962. The behaviour of honeybees visiting field beans (Vicia faba). Journal of Animal Ecology. 31 (3), pp. 497-502.

The foraging behaviour of honeybees in relation to pollination

A - Papers appearing in refereed journals

Free, J. B. 1962. The foraging behaviour of honeybees in relation to pollination. Lecture given to the Central Association of Beekeepers on 12th April 1962.

Studies on the pollination of fruit trees by honey bees

A - Papers appearing in refereed journals

Free, J. B. 1962. Studies on the pollination of fruit trees by honey bees. Journal of the Royal Horticultural Society. 87, pp. 302-309.

The effect of distance from pollinizer varieties on the fruit set on trees in plum and apple orchards

A - Papers appearing in refereed journals

Free, J. B. 1962. The effect of distance from pollinizer varieties on the fruit set on trees in plum and apple orchards. Journal of Horticultural Science. 37 (4), pp. 262-271.

The upper lethal temperature of honeybees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1962. The upper lethal temperature of honeybees. Entomologia Experimentalis et Applicata. 5 (4), pp. 249-254.

Hypopharyngeal gland development and division of labour in honey-bee (Apis mellifera L.) colonies

A - Papers appearing in refereed journals

Free, J. B. 1961. Hypopharyngeal gland development and division of labour in honey-bee (Apis mellifera L.) colonies. Proceedings of the Royal Entomological Society London. Series A. General entomology. 36 (1-3), pp. 5-8.

The Social Organization of the Bumblebee Colony

A - Papers appearing in refereed journals

Free, J. B. 1961. The Social Organization of the Bumblebee Colony. A Lecture Given to the Central Association of Bee-keepers on 18 January 1961. January (18th).

The stimuli releasing the stinging response of honeybees

A - Papers appearing in refereed journals

Free, J. B. 1961. The stimuli releasing the stinging response of honeybees. Animal Behaviour. 9 (3-4), pp. 193-196.

The foraging behaviour of honeybees from colonies moved into a pear orchard in full flower

A - Papers appearing in refereed journals

Free, J. B. and Smith, M. V. 1961. The foraging behaviour of honeybees from colonies moved into a pear orchard in full flower. Bee World. 42 (1), pp. 11-12.

Further experiments on the drifting of honey-bees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1961. Further experiments on the drifting of honey-bees. The Journal of Agricultural Science. 57 (2), pp. 153-158.

Effect of temperature on Apis indica workers

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1961. Effect of temperature on Apis indica workers. Nature. 190 (4779), pp. 933-933.

The effect of feeding sugar syrup to honey-bee colonies

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1961. The effect of feeding sugar syrup to honey-bee colonies. The Journal of Agricultural Science. 57 (2), pp. 147-151.

Analysis of honey farmers' records on queen rearing and queen introduction

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1961. Analysis of honey farmers' records on queen rearing and queen introduction. The Journal of Agricultural Science. 56, pp. 325-331.

The distribution of bees in a honey-bee (Apis mellifera L.) colony

A - Papers appearing in refereed journals

Free, J. B. 1960. The distribution of bees in a honey-bee (Apis mellifera L.) colony. Proceedings of the Royal Entomological Society London. Series A. General entomology. 35 (10-12), pp. 141-144.

The behaviour of honeybees visiting flowers of fruit trees

A - Papers appearing in refereed journals

Free, J. B. 1960. The behaviour of honeybees visiting flowers of fruit trees. Journal of Animal Ecology. 29 (2), pp. 385-395.

The Pollination of Fruit Trees

A - Papers appearing in refereed journals

Free, J. B. 1960. The Pollination of Fruit Trees. Bee World. 41 (7), pp. 169-186.

The effect on foraging behavior of moving honey bee colonies to crops before or after flowering has begun

A - Papers appearing in refereed journals

Free, J. B., Free, N. W. and Jay, S. C. 1960. The effect on foraging behavior of moving honey bee colonies to crops before or after flowering has begun. Journal of Economic Entomology. 53 (4), pp. 564-566.

Chill-coma and cold death temperature of Apis mellifera

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1960. Chill-coma and cold death temperature of Apis mellifera. Entomologia Experimentalis et Applicata. 3 (3), pp. 222-230.

The transfer of food between the adult members of a honeybee community

A - Papers appearing in refereed journals

Free, J. B. 1959. The transfer of food between the adult members of a honeybee community. Bee World. 40 (8), pp. 193-201.

The effect of moving colonies of honeybees to new sites on their subsequent foraging behaviour

A - Papers appearing in refereed journals

Free, J. B. 1959. The effect of moving colonies of honeybees to new sites on their subsequent foraging behaviour. The Journal of Agricultural Science. 53 (1), pp. 1-9.

The longevity of worker honeybees

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1959. The longevity of worker honeybees. Proceedings of the Royal Entomological Society London. Series A. General entomology. 34 (10-12), pp. 141-150.

The ability of worker honeybees (Apis mellifera) to learn a change in the location of their hives

A - Papers appearing in refereed journals

Free, J. B. 1958. The ability of worker honeybees (Apis mellifera) to learn a change in the location of their hives. Animal Behaviour. 6 (3-4), pp. 219-223.

The behaviour of honeybees when their hive is moved to a new site

A - Papers appearing in refereed journals

Free, J. B. 1958. The behaviour of honeybees when their hive is moved to a new site. Bee World. 39 (5), pp. 109-115.

The drifting of honey-bees

A - Papers appearing in refereed journals

Free, J. B. 1958. The drifting of honey-bees. The Journal of Agricultural Science. 51 (3), pp. 294-306.

The defence of bumblebee colonies

A - Papers appearing in refereed journals

Free, J. B. 1958. The defence of bumblebee colonies. Behaviour. 12 (3), pp. 233-242.

Observations on the temperature regulation and food consumption of honey-bee (Apis mellifica)

A - Papers appearing in refereed journals

Free, J. B. and Spencer-Booth, Y. 1958. Observations on the temperature regulation and food consumption of honey-bee (Apis mellifica) . Journal Of Experimental Biology. 35 (4), pp. 930-937.

The size of apertures through which worker honeybees will feed one another

A - Papers appearing in refereed journals

Free, J. B. and Butler, C. G. 1958. The size of apertures through which worker honeybees will feed one another. Bee World. 39 (2), pp. 40-42.

The food of adult drone honeybees (Apis mellifera)

A - Papers appearing in refereed journals

Free, J. B. 1957. The food of adult drone honeybees (Apis mellifera). The British journal of animal behaviour. 5, pp. 7-11.

The transmission of food between worker honeybees

A - Papers appearing in refereed journals

Free, J. B. 1957. The transmission of food between worker honeybees. The British journal of animal behaviour. 5 (2), pp. 41-47.

The effect of social facilitation on the ovarial development of bumble‐bee workers.

A - Papers appearing in refereed journals

Free, J. B. 1957. The effect of social facilitation on the ovarial development of bumble‐bee workers. Proceedings of the Royal Entomological Society London. Series A. General entomology. 32 (10-12), pp. 182-184.

A study of the stimuli which release the food begging and offering responses of worker honeybees

A - Papers appearing in refereed journals

Free, J. B. 1956. A study of the stimuli which release the food begging and offering responses of worker honeybees. The British journal of animal behaviour. 4 (3), pp. 95-101.

Some problems of red clover pollination

A - Papers appearing in refereed journals

Butler, C. G., Free, J. B. and Simpson, J. 1956. Some problems of red clover pollination. Annals of Applied Biology - AAB. 44 (4), pp. 664-669.

The division of labour within bumblebee colonies

A - Papers appearing in refereed journals

Free, J. B. 1955. The division of labour within bumblebee colonies. Insectes Sociaux. 2, pp. 195-212.

Queen production in colonies of bumblebees

A - Papers appearing in refereed journals

Free, J. B. 1955. Queen production in colonies of bumblebees. Proceedings of the Royal Entomological Society London. Series A. General entomology. 30 (1-3), pp. 19-25.

The collection of food by bumblebees

A - Papers appearing in refereed journals

Free, J. B. 1955. The collection of food by bumblebees. Insectes Sociaux. 2, pp. 303-311.

The adaptability of bumblebees to a change in the location of their nest

A - Papers appearing in refereed journals

Free, J. B. 1955. The adaptability of bumblebees to a change in the location of their nest. The British journal of animal behaviour. 3 (2), pp. 61-65.

The behaviour of egg-laying workers of bumblebee colonies

A - Papers appearing in refereed journals

Free, J. B. 1955. The behaviour of egg-laying workers of bumblebee colonies. The British journal of animal behaviour. 3 (4), pp. 147-153.

The behaviour of robber honeybees

A - Papers appearing in refereed journals

Free, J. B. 1955. The behaviour of robber honeybees. Behaviour. 7 (1), pp. 233-239.

An analysis of the factors involved in the formation of a cluster of honeybees

A - Papers appearing in refereed journals

Free, J. B. and Butler, C. G. 1955. An analysis of the factors involved in the formation of a cluster of honeybees. Behaviour. 7 (1), pp. 304-316.

The behaviour of worker honeybees at the hive entrance

A - Papers appearing in refereed journals

Butler, C. G. and Free, J. B. 1952. The behaviour of worker honeybees at the hive entrance. Behaviour. 4 (4), pp. 262-292.