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.

AuthorsCarreck, N. L. and Williams, I. H.
Year of Publication2002
JournalJournal of Insect Conservation
Journal citation6, pp. 13-23
Open accessPublished as non-open access
Funder project or code436
509
Behavioural ecology of pollinators

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. https://doi.org/10.1111/j.1461-9563.2008.00391.x

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. https://doi.org/10.1080/09670870701376374

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. https://doi.org/10.1111/j.1461-9563.2007.00343.x

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. https://doi.org/10.1111/j.1570-7458.2007.00551.x

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. https://doi.org/10.1007/s11829-007-9004-5

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. https://doi.org/10.1080/09583150600937485

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. https://doi.org/10.1016/j.jinsphys.2006.06.003

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. https://doi.org/10.14411/eje.2006.041

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. https://doi.org/10.1111/j.1570-7458.2006.00419.x

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. https://doi.org/10.1111/j.1570-7458.2006.00404.x

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. https://doi.org/10.1111/j.1570-7458.2005.00299.x

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. https://doi.org/10.1079/BER2005360

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. https://doi.org/10.1051/apido:2005045

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. https://doi.org/10.1111/j.1365-3032.2005.00445.x

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. https://doi.org/10.1007/s10526-004-0895-0

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. https://doi.org/10.1111/j.0307-6946.2004.00589.x

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

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. https://doi.org/10.1046/j.1365-2311.2003.00548.x

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 (2-3), pp. 509-521. https://doi.org/10.1016/S0167-8809(02)00200-1

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. https://doi.org/10.1046/j.1570-7458.2002.00989.x

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 .

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 (3), pp. 199-203. https://doi.org/10.1079/BER200189

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. https://doi.org/10.1002/1526-4998(200011)56:11<977::AID-PS224>3.0.CO;2-U

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. https://doi.org/10.1046/j.1570-7458.2000.00654.x

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. https://doi.org/10.1023/A:1009997917947

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. https://doi.org/10.1046/j.1365-2664.1999.00428.x

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. https://doi.org/10.1016/S0022-1910(99)00046-3

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. https://doi.org/10.1038/22029

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. https://doi.org/10.1046/j.1570-7458.1999.00479.x

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. https://doi.org/10.1046/j.1365-3032.1998.232066.x

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. https://doi.org/10.1046/j.1570-7458.1997.00256.x

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. https://doi.org/10.1016/S0261-2194(97)00045-8

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 (4), pp. 397-403. https://doi.org/10.1017/S0021859697004279

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. https://doi.org/10.1051/apido:19970105

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. https://doi.org/10.1038/379029b0

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. https://doi.org/10.1111/j.1365-3032.1994.tb01048.x

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. https://doi.org/10.1111/j.1570-7458.1994.tb01841.x

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 (3), pp. 405-413. https://doi.org/10.1017/S0021859600067332

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. https://doi.org/10.1080/0005772X.1993.11099160

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. https://doi.org/10.1080/0005772X.1993.11099150

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.

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. https://doi.org/10.1111/j.1365-3032.1991.tb00540.x

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.

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. https://doi.org/10.1017/S0021859600075778

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 (1), pp. 67-73. https://doi.org/10.1017/S0021859600073937

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).

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

A - Papers appearing in refereed journals
Williams, I. H. 1989. Pest incidence on single low and double low oilseed rape cultivars. Aspects of Applied Biology. 23, pp. 277-286.

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.)

A - Papers appearing in refereed journals
Ferguson, A. W. and Williams, I. H. 1989. Oviposition-deterring pheromone of the cabbage seed weevil (Ceutorhynchus assimilis Payk.). Aspects of Applied Biology. 23, pp. 339-342.

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

A - Papers appearing in refereed journals
Bartlet, E. and Williams, I. H. 1989. Host plant selection by the cabbage stem flea beetle (Psylliodes chrysocephala ). Aspects of Applied Biology. 23, pp. 335-338.

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. https://doi.org/10.1111/j.1744-7348.1989.tb03396.x

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 (2), pp. 309-314. https://doi.org/10.1017/S0021859600080734

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 (3), pp. 579-589. https://doi.org/10.1017/S0021859600079983

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 (1), pp. 135-139. https://doi.org/10.1017/S0021859600081077

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. https://doi.org/10.1111/j.1365-3032.1986.tb00423.x

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. https://doi.org/10.1017/S0021859600061670

Oil seed rape and beekeeping

G - Articles in popular magazines and other technical publications
Williams, I. H. 1985. Oil seed rape and beekeeping. Report of the Central Association of Beekeepers. pp. 1-8.

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. https://doi.org/10.1080/0005772x.1985.11098817

The pollination requirements of cultivars of oil-seed rape [Brassica napus, turnip, Brassica campestris]

A - Papers appearing in refereed journals
Williams, I. H. 1984. The pollination requirements of cultivars of oil-seed rape [Brassica napus, turnip, Brassica campestris]. Veme Symposium International sur la pollinisation Versailes 27-30 September 1983 INRA. 21.

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. https://doi.org/10.1038/308300b0

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 (2), pp. 353-357. https://doi.org/10.1017/s0021859600047316

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. https://doi.org/10.1016/0160-4120(83)90108-3

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. https://doi.org/10.1080/00218839.1983.11100564

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. https://doi.org/10.1080/00218839.1983.11100566

(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. https://doi.org/10.1007/bf00984013

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. https://doi.org/10.1080/00218839.1982.11100512

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. https://doi.org/10.1007/bf00987804

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. https://doi.org/10.1080/00218839.1982.11100532

Chemical communication in honeybees

A - Papers appearing in refereed journals
Williams, I. H. 1981. Chemical communication in honeybees. Central Association of Bee-Keepers.

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. https://doi.org/10.1080/0005772x.1981.11097827

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. https://doi.org/10.1007/bf00995745

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. https://doi.org/10.1007/bf00987702

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. https://doi.org/10.1111/j.1570-7458.1981.tb03098.x

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. https://doi.org/10.1080/00218839.1981.11100503

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. https://doi.org/10.1016/0006-3207(80)90073-7

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. https://doi.org/10.1002/ps.2780110102

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. https://doi.org/10.1080/0005772x.1980.11097797

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. https://doi.org/10.1007/bf01402919

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 (1), pp. 203-218. https://doi.org/10.1017/s0021859600060652

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 (1), pp. 139-149. https://doi.org/10.1017/s0021859600060597

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 (1), pp. 53-59. https://doi.org/10.1017/s0021859600060494

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-&.

Pests and pollution of oil-seed rape crops on England

A - Papers appearing in refereed journals
Williams, I. H. 1978. Pests and pollution of oil-seed rape crops on England. Report of the Central Association of Bee-Keepers. June.

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 (2), pp. 417-424. https://doi.org/10.1017/s0021859600055520

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-&. https://doi.org/10.2307/2402773

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 (2), pp. 343-348. https://doi.org/10.1017/s0021859600046438

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

A - Papers appearing in refereed journals
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 (2), pp. 453-459. https://doi.org/10.1017/s0021859600046554

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.

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. https://doi.org/10.1016/0304-3762(76)90042-0

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 (2), pp. 395-399. https://doi.org/10.1017/s0021859600027714

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. https://doi.org/10.1002/ps.2780070216

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. https://doi.org/10.1016/0006-3207(75)90079-8

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. https://doi.org/10.1016/0304-3762(75)90013-9

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. https://doi.org/10.1080/00221589.1975.11514649

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. https://doi.org/10.1111/j.1744-7348.1975.tb00529.x

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. https://doi.org/10.1016/0003-3472(75)90143-8

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.

Solitary bees in Britian

A - Papers appearing in refereed journals
Williams, I. H. 1974. Solitary bees in Britian. Lecture to the Central Association of Bee-Keepers. pp. 1-12.

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. https://doi.org/10.1080/00221589.1974.11514583

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. https://doi.org/10.2307/2402194

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. https://doi.org/10.2307/2401754

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.

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 (3), pp. 557-559. https://doi.org/10.1017/s0021859600086627

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. https://doi.org/10.1111/j.1744-7348.1973.tb01318.x

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. https://doi.org/10.2307/2402297

Trap-nesting solitary bees for students of biology

A - Papers appearing in refereed journals
Williams, I. H. 1972. Trap-nesting solitary bees for students of biology. Bee World. 53 (3), pp. 123-135.

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. https://doi.org/10.1111/j.1570-7458.1972.tb00200.x

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. https://doi.org/10.1016/S0003-3472(72)80054-X

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. https://doi.org/10.2307/2402458

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. https://doi.org/10.1080/00218839.1971.11099676

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. https://doi.org/10.2307/2401978

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. https://doi.org/10.1163/156853970X00385

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