Parasitoid responses to semiochemicals - innate, conditioned or learnt?

Poppy, G. M., Powell, W. and Pennacchio, F. 1996. Parasitoid responses to semiochemicals - innate, conditioned or learnt? Proceedings Aphidophaga 6, Gembloux, 2-6 September 1996 .

Related outputs

Migratory flight behaviour of the pollen beetle Meligethes aeneus

A - Papers appearing in refereed journals

Mauchline, A. L., Cook, S. M., Powell, W., Chapman, J. W. and Osborne, J. L. 2017. Migratory flight behaviour of the pollen beetle Meligethes aeneus. Pest Management Science. 73 (6), pp. 1076-1082. https://doi.org/10.1002/ps.4550

Field evaluation of synthetic aphid sex pheromone in enhancing suppression of aphid abundance by their natural enemies

A - Papers appearing in refereed journals

Nakashima, Y., Ida, T. Y., Powell, W., Pickett, J. A., Birkett, M. A., Taki, H. and Takabayashi, J. 2016. Field evaluation of synthetic aphid sex pheromone in enhancing suppression of aphid abundance by their natural enemies. BioControl. 61 (5), pp. 485-496. https://doi.org/10.1007/s10526-016-9734-3

Flight of Meligethes aeneus at a range of altitudes

C1 - Edited contributions to conferences/learned societies

Mauchline, A. L., Cook, S. M., Powell, W., Chapman, J. W. and Osborne, J. L. 2014. Flight of Meligethes aeneus at a range of altitudes. IOBC.

Achieving food and environmental security: new approaches to close the gap

A - Papers appearing in refereed journals

Poppy, G. M., Jepson, P. C., Pickett, J. A. and Birkett, M. A. 2014. Achieving food and environmental security: new approaches to close the gap. Philosophical Transactions of the Royal Society B-Biological Sciences. 369, p. 20120272. https://doi.org/10.1098/rstb.2012.0272

Do asexual morphs of the peach-potato aphid, Myzus persicae, utilise the aphid sex pheromone? Behavioural and electrophysiological responses of M. persicae virginoparae to (4aS,7S,7aR)-nepetalactone and its effect on aphid performance

A - Papers appearing in refereed journals

Fernandez-Grandon, G. M., Woodcock, C. M. and Poppy, G. M. 2013. Do asexual morphs of the peach-potato aphid, Myzus persicae, utilise the aphid sex pheromone? Behavioural and electrophysiological responses of M. persicae virginoparae to (4aS,7S,7aR)-nepetalactone and its effect on aphid performance. Bulletin of Entomological Research. 103, pp. 466-472. https://doi.org/10.1017/S0007485313000126

Effects of non-host plant odour on Melingethes aeneus during immigration to oilseed rape

A - Papers appearing in refereed journals

Mauchline, A. L., Cook, S. M., Powell, W. and Osborne, J. L. 2013. Effects of non-host plant odour on Melingethes aeneus during immigration to oilseed rape. Entomologia Experimentalis et Applicata. 146 (3), pp. 313-320. https://doi.org/10.1111/eea.12030

Odour-mediated orientation behaviour of the lily beetle Lilioceris lilii

A - Papers appearing in refereed journals

Salisbury, A., Cook, S. M., Powell, W. and Hardie, J. 2012. Odour-mediated orientation behaviour of the lily beetle Lilioceris lilii. Physiological Entomology. 37 (1), pp. 97-102. https://doi.org/10.1111/j.1365-3032.2011.00823.x

Two-step learning involved in acquiring olfactory preferences for plant volatiles by parasitic wasps

A - Papers appearing in refereed journals

Takemoto, H., Powell, W., Pickett, J. A., Kainoh, Y. and Takabayashi, J. 2012. Two-step learning involved in acquiring olfactory preferences for plant volatiles by parasitic wasps. Animal Behaviour. 83, pp. 1491-1496. https://doi.org/10.1016/j.anbehav.2012.03.023

Fitness trade-off in peach-potato aphids (Myzus persicae) between insecticide resistance and vulnerability to parasitoid attack at several spatial scales

A - Papers appearing in refereed journals

Foster, S. P., Denholm, I., Poppy, G. M., Thompson, R. and Powell, W. 2011. Fitness trade-off in peach-potato aphids (Myzus persicae) between insecticide resistance and vulnerability to parasitoid attack at several spatial scales. Bulletin of Entomological Research. 101 (6), pp. 659-666. https://doi.org/10.1017/S0007485310000623

Susceptibility of six Lilium to damage by the lily beetle, Lilioceris lilii (Coleoptera: Chrysomelidae)

A - Papers appearing in refereed journals

Salisbury, A., Clark, S. J., Powell, W. and Hardie, J. 2010. Susceptibility of six Lilium to damage by the lily beetle, Lilioceris lilii (Coleoptera: Chrysomelidae). Annals of Applied Biology - AAB. 156 (1), pp. 103-110. https://doi.org/10.1111/j.1744-7348.2009.00368.x

Learning is involved in the response of parasitic wasps Aphidius ervi (Haliday) (Hymenoptera: Braconidae) to volatiles from a broad bean plant, Vicia faba (Fabaceae), infested by aphids Acyrthosiphon pisum (Harris) (Homoptera: Aphididae)

A - Papers appearing in refereed journals

Takemoto, H., Powell, W., Pickett, J. A., Kainoh, Y. and Takabayashi, J. 2009. Learning is involved in the response of parasitic wasps Aphidius ervi (Haliday) (Hymenoptera: Braconidae) to volatiles from a broad bean plant, Vicia faba (Fabaceae), infested by aphids Acyrthosiphon pisum (Harris) (Homoptera: Aphididae). Applied Entomology and Zoology. 44, pp. 23-28. https://doi.org/10.1303/aez.2009.23

Host foraging for differentially adapted brassica-feeding aphids by the braconid parasitoid Diaeretiella rapae (Article addendum)

A - Papers appearing in refereed journals

Blande, J. D., Pickett, J. A. and Poppy, G. M. 2008. Host foraging for differentially adapted brassica-feeding aphids by the braconid parasitoid Diaeretiella rapae (Article addendum). Plant Signaling and Behavior. 3, pp. 580-582.

Electrophysiological and behavioural responses of the pollen beetle, Meligethes aeneus , to volatiles from a non-host plant, lavender, Lavandula angustifolia (Lamiaceae)

A - Papers appearing in refereed journals

Mauchline, A. L., Birkett, M. A., Woodcock, C. M., Pickett, J. A., Osborne, J. L. and Powell, W. 2008. Electrophysiological and behavioural responses of the pollen beetle, Meligethes aeneus , to volatiles from a non-host plant, lavender, Lavandula angustifolia (Lamiaceae). Arthropod-Plant Interactions. 2, pp. 109-115. https://doi.org/10.1007/s11829-008-9038-3

Aggregation of parasitism risk in an aphid-parasitoid system: effects of plant patch size and aphid density

A - Papers appearing in refereed journals

Pareja, M., Brown, V. K. and Powell, W. 2008. Aggregation of parasitism risk in an aphid-parasitoid system: effects of plant patch size and aphid density. Basic and Applied Ecology. 9, pp. 701-708. https://doi.org/10.1016/j.baae.2007.10.008

Endoparasitism in cereal aphids: molecular analysis of a whole parasitoid community

A - Papers appearing in refereed journals

Traugott, M., Bell, J. R., Broad, G. R., Powell, W., Van Veen, F. J. F., Vollhardt, I. M. G. and Symondson, W. O. C. 2008. Endoparasitism in cereal aphids: molecular analysis of a whole parasitoid community. Molecular Ecology. 17 (17), pp. 3928-3938. https://doi.org/10.1111/j.1365-294X.2008.03878.x

Providing the evidence base for environmental risk assessments of novel farm management practices

A - Papers appearing in refereed journals

Storkey, J., Bohan, D. A., Haughton, A. J., Champion, G. T., Perry, J. N., Poppy, G. M. and Woiwod, I. P. 2008. Providing the evidence base for environmental risk assessments of novel farm management practices. Environmental Science & Policy. 11, pp. 579-587. https://doi.org/10.1016/j.envsci.2008.06.001

Movement of transgenic plant-expressed Bt Cry1Ac proteins through high trophic levels

A - Papers appearing in refereed journals

Wei, W., Schuler, T. H., Clark, S. J., Stewart, C. N. Jr and Poppy, G. M. 2008. Movement of transgenic plant-expressed Bt Cry1Ac proteins through high trophic levels. Journal of Applied Entomology. 132 (1), pp. 1-11. https://doi.org/10.1111/j.1439-0418.2007.01242.x

Structure, ratios and patterns of release in the sex pheromone of an aphid, Dysaphis plantaginea

A - Papers appearing in refereed journals

Stewart-Jones, A., Dewhirst, S. Y., Durrant, L., Fitzgerald, J. D., Hardie, J., Hooper, A. M., Pickett, J. A. and Poppy, G. M. 2007. Structure, ratios and patterns of release in the sex pheromone of an aphid, Dysaphis plantaginea. Journal Of Experimental Biology. 210, pp. 4335-4344. https://doi.org/10.1242/jeb.009944

Effect of the presence of a nonhost herbivore on the response of the aphid parasitoid Diaeretiella rapae to host-infested cabbage plants

A - Papers appearing in refereed journals

Agbogba, B. C. and Powell, W. 2007. Effect of the presence of a nonhost herbivore on the response of the aphid parasitoid Diaeretiella rapae to host-infested cabbage plants. Journal of Chemical Ecology. 33, pp. 2229-2235. https://doi.org/10.1007/s10886-007-9379-x

Foraging behaviour of the parasitoid Lysiphlebus testaceipes (Hymenoptera: Braconidae) in response to plant volatiles, with reference to biocontrol of aphids in peri-urban vegetable production systems

A - Papers appearing in refereed journals

Lopez Perez, M., Fernandez Argudin, M. and Powell, W. 2007. Foraging behaviour of the parasitoid Lysiphlebus testaceipes (Hymenoptera: Braconidae) in response to plant volatiles, with reference to biocontrol of aphids in peri-urban vegetable production systems. Biocontrol Science and Technology. 17, pp. 677-686. https://doi.org/10.1080/09583150701408949

Behavioural side-effects of insecticide resistance in aphids increase their vulnerability to parasitoid attack

A - Papers appearing in refereed journals

Foster, S. P., Tomiczek, M., Thompson, R., Denholm, I., Poppy, G. M., Kraaijeveld, A. R. and Powell, W. 2007. Behavioural side-effects of insecticide resistance in aphids increase their vulnerability to parasitoid attack. Animal Behaviour. 74 (3), pp. 621-632. https://doi.org/10.1016/j.anbehav.2006.12.018

Responses of Phradis parasitoids to volatiles of lavender, Lavendula angustifolia - a possible repellent for their host, Meligethes aeneus

A - Papers appearing in refereed journals

Cook, S. M., Jonsson, M., Skellern, M. P., Murray, D. A., Anderson, P. and Powell, W. 2007. Responses of Phradis parasitoids to volatiles of lavender, Lavendula angustifolia - a possible repellent for their host, Meligethes aeneus. BioControl. 52, pp. 591-598. https://doi.org/10.1007/s10526-006-9057-x

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

Mitigation of indirect environmental effects of GM crops

A - Papers appearing in refereed journals

Pidgeon, J. D., May, M. J., Perry, J. N. and Poppy, G. M. 2007. Mitigation of indirect environmental effects of GM crops. Proceedings of the Royal Society of London Series B Biological Sciences. 274, pp. 1475-1479. https://doi.org/10.1098/rspb.2007.0401

Response of the aphid parasitoid Aphidius funebris to volatiles from undamaged and aphid-infested Centaurea nigra

A - Papers appearing in refereed journals

Pareja, M., Moraes, M. C. B., Clark, S. J., Birkett, M. A. and Powell, W. 2007. Response of the aphid parasitoid Aphidius funebris to volatiles from undamaged and aphid-infested Centaurea nigra. Journal of Chemical Ecology. 33 (April), pp. 695-710. https://doi.org/10.1007/s10886-007-9260-y

Host-plant mediated effects of transgenic maize on the insect parasitoid Campoletis sonorensis (Hymenoptera: Ichneumonidae)

A - Papers appearing in refereed journals

Sanders, C. J., Pell, J. K., Poppy, G. M., Raybould, A., Garcia-Alonso, M. and Schuler, T. H. 2007. Host-plant mediated effects of transgenic maize on the insect parasitoid Campoletis sonorensis (Hymenoptera: Ichneumonidae). Biological Control. 40, pp. 362-369. https://doi.org/10.1016/j.biocontrol.2006.12.010

A comparison of semiochemically mediated interactions involving specialist and generalist Brassica -feeding aphids and the braconid parasitoid Diaeretiella rapae

A - Papers appearing in refereed journals

Blande, J. D., Pickett, J. A. and Poppy, G. M. 2007. A comparison of semiochemically mediated interactions involving specialist and generalist Brassica -feeding aphids and the braconid parasitoid Diaeretiella rapae. Journal of Chemical Ecology. 33, pp. 767-779. https://doi.org/10.1007/s10886-007-9264-7

Functional biodiversity of aphid natural enemies: positive intra-guild interactions

C1 - Edited contributions to conferences/learned societies

Powell, W., Pell, J. K., Nakashima, Y., Baverstock, J. and Birkett, M. A. 2006. Functional biodiversity of aphid natural enemies: positive intra-guild interactions.

Chemically mediated intraguild predator avoidance by aphid parasitoids: interspecific variability in sensitivity to semiochemical trails of ladybird predators

A - Papers appearing in refereed journals

Nakashima, Y., Birkett, M. A., Pye, B. J. and Powell, W. 2006. Chemically mediated intraguild predator avoidance by aphid parasitoids: interspecific variability in sensitivity to semiochemical trails of ladybird predators. Journal of Chemical Ecology. 32, pp. 1989-1998. https://doi.org/10.1007/s10886-006-9123-y

Avoidance of intraguild predators by parasitoids: chemical mechanisms, behaviour and field evaluation

C1 - Edited contributions to conferences/learned societies

Nakashima, Y., Birkett, M. A. and Powell, W. 2005. Avoidance of intraguild predators by parasitoids: chemical mechanisms, behaviour and field evaluation. Proceedings International Symposium on Biological Control of Aphids and Coccids, Tsuruoka, Japan, 25-29 September 2005 .

Age-related increase in levels of insecticidal protein in the progenies of transgenic oilseed rape and its efficacy against a susceptible strain of diamondback moth

A - Papers appearing in refereed journals

Wei, W., Schuler, T. H., Clark, S. J., Stewart, C. N. and Poppy, G. M. 2005. Age-related increase in levels of insecticidal protein in the progenies of transgenic oilseed rape and its efficacy against a susceptible strain of diamondback moth. Annals of Applied Biology - AAB. 147 (3), pp. 227-234. https://doi.org/10.1111/j.1744-7348.2005.00024.x

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

Laboratory studies of the effects of reduced prey choice caused by Bt plants on a predatory insect

A - Papers appearing in refereed journals

Schuler, T. H., Clark, A. J., Clark, S. J., Poppy, G. M., Stewart, C. N. Jr and Denholm, I. 2005. Laboratory studies of the effects of reduced prey choice caused by Bt plants on a predatory insect. Bulletin of Entomological Research. 95 (3), pp. 243-247. https://doi.org/10.1079/BER2004356

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

The effects of non-host plant essential oil volatiles on the behaviour of the pollen beetle Meligethes aeneus

A - Papers appearing in refereed journals

Mauchline, A. L., Osborne, J. L., Martin, A. P., Poppy, G. M. and Powell, W. 2005. The effects of non-host plant essential oil volatiles on the behaviour of the pollen beetle Meligethes aeneus. Entomologia Experimentalis et Applicata. 114 (3), pp. 181-188. https://doi.org/10.1111/j.1570-7458.2005.00237.x

Insect behavioural ecology and other factors affecting the control efficacy of agro-ecosystem diversification strategies

A - Papers appearing in refereed journals

Potting, R. P. J., Perry, J. N. and Powell, W. 2005. Insect behavioural ecology and other factors affecting the control efficacy of agro-ecosystem diversification strategies. Ecological Modelling. 182, pp. 199-216.

Reduced response of insecticide-resistant aphids and attraction of parasitoids to aphid alarm pheromone; a potential fitness trade-off

A - Papers appearing in refereed journals

Foster, S. P., Denholm, I., Thompson, R., Poppy, G. M. and Powell, W. 2005. Reduced response of insecticide-resistant aphids and attraction of parasitoids to aphid alarm pheromone; a potential fitness trade-off. Bulletin of Entomological Research. 95 (1), pp. 37-46. https://doi.org/10.1079/BER2004336

Parasitoid impact on aphid populations in UK cereal crops and attempts at manipulation

C2 - Non-edited contributions to conferences

Powell, W. 2004. Parasitoid impact on aphid populations in UK cereal crops and attempts at manipulation. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

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 .

Attack rate and success of the parasitoid Diaeretiella rapae on specialist and generalist feeding aphids

A - Papers appearing in refereed journals

Blande, J. D., Pickett, J. A. and Poppy, G. M. 2004. Attack rate and success of the parasitoid Diaeretiella rapae on specialist and generalist feeding aphids. Journal of Chemical Ecology. 30, pp. 1781-1795.

Pleiotropic effects of insecticide resistance genes in an aphid pest on vulnerability to attack by parasitoid wasps

C2 - Non-edited contributions to conferences

Foster, S. P., Denholm, I. and Powell, W. 2004. Pleiotropic effects of insecticide resistance genes in an aphid pest on vulnerability to attack by parasitoid wasps. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

Insect behaviour and Bt crops

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. P. J., Clark, A., Poppy, G. M., Gatehouse, A. M. R. and Denholm, I. 2004. Insect behaviour and Bt crops. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

Effects of reduced prey choice caused by GM plants on a predatory insect

C2 - Non-edited contributions to conferences

Schuler, T. H., Clark, A., Poppy, G. M. and Denholm, I. 2004. Effects of reduced prey choice caused by GM plants on a predatory insect. Abstracts Strength in Diversity: 22nd International Congress of Entomology, Brisbane, 15-21 August 2004 .

Interactions between transgenic plants, the diamondback moth and natural enemies

C1 - Edited contributions to conferences/learned societies

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 2004. Interactions between transgenic plants, the diamondback moth and natural enemies. Endersby, N. M. and Ridland, P. M. (ed.) Management of Diamondback Moth and Other Crucifer Pests. Proceedings of the 4th International Workshop, Melbourne, 26-29 November 2001 . Regional Institute Ltd, Gosford NSW. pp. 127-131

The role of semiochemicals in the avoidance of the seven-spot ladybird, Coccinella septempunctata , by the aphid parasitoid, Aphidius ervi

A - Papers appearing in refereed journals

Nakashima, Y., Birkett, M. A., Pye, B. J., Pickett, J. A. and Powell, W. 2004. The role of semiochemicals in the avoidance of the seven-spot ladybird, Coccinella septempunctata , by the aphid parasitoid, Aphidius ervi. Journal of Chemical Ecology. 30, pp. 1103-1116.

Genetic manipulation of natural enemies: can we improve biological control by manipulating the parasitoid and/or the plant?

B - Book chapters etc edited externally

Poppy, G. M. and Powell, W. 2004. Genetic manipulation of natural enemies: can we improve biological control by manipulating the parasitoid and/or the plant? in: Mateille, T., Ehler, L. E. and Sforza, R. (ed.) Genetics, evolution and biological control CABI International, Wallingford, Oxon (CABI). pp. 219-233

Feeding responses of carabid beetles to dimethoate- contaminated prey

A - Papers appearing in refereed journals

Mauchline, A. L., Osborne, J. L. and Powell, W. 2004. Feeding responses of carabid beetles to dimethoate- contaminated prey. Agricultural and Forest Entomology. 6 (2), pp. 99-104. https://doi.org/10.1111/j.1461-9563.2004.00208.x

Effects of Bt plants on the development and survival of the parasitoid Cotesia plutellae (Hymenoptera: Braconidae) in susceptible and Bt-resistant larvae of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae)

A - Papers appearing in refereed journals

Schuler, T. H., Denholm, I., Clark, S. J., Stewart, C. N. and Poppy, G. M. 2004. Effects of Bt plants on the development and survival of the parasitoid Cotesia plutellae (Hymenoptera: Braconidae) in susceptible and Bt-resistant larvae of the diamondback moth Plutella xylostella (Lepidoptera: Plutellidae). Journal of Insect Physiology. 50, pp. 435-443.

Attack rate and success of Diaeretiella rapae on specialist and generalist crucifer feeding aphids

C2 - Non-edited contributions to conferences

Blande, J. D., Poppy, G. M. and Pickett, J. A. 2003. Attack rate and success of Diaeretiella rapae on specialist and generalist crucifer feeding aphids. Abstracts 51st Annual Meeting of the Entomological Society of America, Cincinnati, 26-29 October 2003 .

Using field margin diversification in agri-environment schemes to enhance aphid natural enemies

C1 - Edited contributions to conferences/learned societies

Powell, W., Walters, K., A'hara, S., Ashby, J., Stevenson, H. and Northing, P. 2003. Using field margin diversification in agri-environment schemes to enhance aphid natural enemies.

Determination of plant foraging preferences in the aphid parasitoid Aphidius colemani : emergence conditioning, learning and memory

C2 - Non-edited contributions to conferences

Powell, W., Storeck, A., Poppy, G. M. and Van Emden, H. 2003. Determination of plant foraging preferences in the aphid parasitoid Aphidius colemani : emergence conditioning, learning and memory. Oxford Univ Press Inc.

Avoidance of intraguild predators by parasitoids: chemically mediated behavioural mechanisms and field evaluation

C2 - Non-edited contributions to conferences

Nakashima, Y., Birkett, M. A. and Powell, W. 2003. Avoidance of intraguild predators by parasitoids: chemically mediated behavioural mechanisms and field evaluation. Oxford University Press (OUP) Oxford. https://doi.org/10.1093/jis/3.1.33

Tritrophic interactions between a Bt plant, the diamondback moth and a braconid endoparasitoid

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. P. J., Clark, A. J., Denholm, I. and Poppy, G. M. 2003. Tritrophic interactions between a Bt plant, the diamondback moth and a braconid endoparasitoid. Oxford Univ Press Inc. https://doi.org/10.1093/jis/3.1.33

Tritrophic choice experiments with Bt plants, the diamondback moth (Plutella xylostella ) and the parasitoid Cotesia plutellae

A - Papers appearing in refereed journals

Schuler, T. H., Potting, R. P. J., Denholm, I., Clark, S. J., Clark, A. J., Stewart, C. N. and Poppy, G. M. 2003. Tritrophic choice experiments with Bt plants, the diamondback moth (Plutella xylostella ) and the parasitoid Cotesia plutellae. Transgenic Research. 12, pp. 351-361.

Manipulation of parasitoids for aphid pest management: progress and prospects

A - Papers appearing in refereed journals

Powell, W. and Pickett, J. A. 2003. Manipulation of parasitoids for aphid pest management: progress and prospects. Pest Management Science. 59 (2), pp. 149-155. https://doi.org/10.1002/ps.550

Plant-to-plant communication mediating in-flight orientation of Aphidius ervi

A - Papers appearing in refereed journals

Guerrieri, E., Poppy, G. M., Powell, W., Rao, R. and Pennacchio, F. 2002. Plant-to-plant communication mediating in-flight orientation of Aphidius ervi. Journal of Chemical Ecology. 28, pp. 1703-1715.

Possibilities and constraints of agro-ecosystem diversification as a pest management strategy: a simulation approach

C1 - Edited contributions to conferences/learned societies

Potting, R. P. J., Perry, J. N. and Powell, W. 2002. Possibilities and constraints of agro-ecosystem diversification as a pest management strategy: a simulation approach. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2002 . pp. 91-96

Effects of Bt plants on natural enemies of brassica pests

C1 - Edited contributions to conferences/learned societies

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 2002. Effects of Bt plants on natural enemies of brassica pests. Hughes, P., Akhurst, R. J. and Beard, C. E. (ed.) Biotechnology of Bacillus thuringiensis and its Environmental Impact. Proceedings of the 4th Pacific Rim Conference . CSIRO, Canberra, Australia. pp. 168-174

Sub-lethal effects of the insecticides pirimicarb and dimethoate on the aphid parasitoid Diaeretiella rapae (Hymenoptera: Braconidae) when attacking and developing in insecticide-resistant hosts

A - Papers appearing in refereed journals

Umoru, P. A. and Powell, W. 2002. Sub-lethal effects of the insecticides pirimicarb and dimethoate on the aphid parasitoid Diaeretiella rapae (Hymenoptera: Braconidae) when attacking and developing in insecticide-resistant hosts. Biocontrol Science and Technology. 12, pp. 605-614.

The variational expression of Bt proteins within transgenic canola and its movement through trophic levels

C2 - Non-edited contributions to conferences

Wei, W., Schuler, T. H., Clark, S. J., Stewart, C. N. and Poppy, G. M. 2002. The variational expression of Bt proteins within transgenic canola and its movement through trophic levels. Abstracts 7th International Symposium on the Biosafety of Genetically Modified Organisms, Beijing, 10-16 October 2002 .

Interactions between transgenic crops and parasitoids

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 2002. Interactions between transgenic crops and parasitoids. Abstracts IOBC International Symposium on the Role of Genetics and Evolution in Biological Control, Montpellier, 14-16 October 2002 . pp. 58

Parasitoid interactions between crop and margin habitat

C2 - Non-edited contributions to conferences

Powell, W. 2002. Parasitoid interactions between crop and margin habitat. Abstracts 7th European Congress of Entomology, Thessaloniki, 7-13 October 2002 . pp. 61

Identification of non-host plant volatiles repellent to pollen beetles

C2 - Non-edited contributions to conferences

Stevenson, A. L., Birkett, M. A., Woodcock, C. M., Pickett, J. A., Osborne, J. L. and Powell, W. 2002. Identification of non-host plant volatiles repellent to pollen beetles. Abstracts 19th Annual Meeting of the International Society of Chemical Ecology, Hamburg, 3-8 August 2002 .

Mating disruption in Agrotis segetum monitored by harmonic radar

A - Papers appearing in refereed journals

Svensson, G. P., Valeur, P. G., Reynolds, D. R., Smith, A. D., Riley, J. R., Baker, T. C., Poppy, G. M. and Lofstedt, C. 2001. Mating disruption in Agrotis segetum monitored by harmonic radar. Entomologia Experimentalis et Applicata. 101 (2), pp. 111-121. https://doi.org/10.1046/j.1570-7458.2001.00896.x

Oviposition behaviour and host colony size discrimination in Episyrphus balteatus (Diptera: Syrphidae)

A - Papers appearing in refereed journals

Sutherland, J. P., Sullivan, M. S. and Poppy, G. M. 2001. Oviposition behaviour and host colony size discrimination in Episyrphus balteatus (Diptera: Syrphidae). Bulletin of Entomological Research. 91 (5), pp. 411-417. https://doi.org/10.1079/BER2001117

Distribution and abundance of aphidophagous hoverflies (Diptera: Syrphidae) in wildflower patches and field margin habitats

A - Papers appearing in refereed journals

Sutherland, J. P., Sullivan, M. S. and Poppy, G. M. 2001. Distribution and abundance of aphidophagous hoverflies (Diptera: Syrphidae) in wildflower patches and field margin habitats. Agricultural and Forest Entomology. 3 (1), pp. 57-64. https://doi.org/10.1046/j.1461-9563.2001.00090.x

Effects of artificial diet containing GNA and GNA-expressing potatoes on the development of the aphid parasitoid Aphidius ervi Haliday (Hymenoptera: Aphidiidae)

A - Papers appearing in refereed journals

Couty, A., Down, R. E., Gatehouse, A. M. R., Kaiser, L., Pham-Delegue, M-H. and Poppy, G. M. 2001. Effects of artificial diet containing GNA and GNA-expressing potatoes on the development of the aphid parasitoid Aphidius ervi Haliday (Hymenoptera: Aphidiidae). Journal of Insect Physiology. 47, pp. 1357-1366.

Does host-feeding on GNA-intoxicated aphids by Aphelinus abdominalis affect their longevity and/or fecundity?

A - Papers appearing in refereed journals

Couty, A. and Poppy, G. M. 2001. Does host-feeding on GNA-intoxicated aphids by Aphelinus abdominalis affect their longevity and/or fecundity? Entomologia Experimentalis et Applicata. 100 (3), pp. 331-337. https://doi.org/10.1046/j.1570-7458.2001.00880.x

Are fecundity and longevity of female Aphelinus abdominalis affected by development in GNA-dosed Macrosiphum euphorbiae?

A - Papers appearing in refereed journals

Couty, A., Clark, S. J. and Poppy, G. M. 2001. Are fecundity and longevity of female Aphelinus abdominalis affected by development in GNA-dosed Macrosiphum euphorbiae? Physiological Entomology. 26 (4), pp. 287-293. https://doi.org/10.1046/j.0307-6962.2001.00248.x

Effects of Bt plants on natural enemies of Brassica pests

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 2001. Effects of Bt plants on natural enemies of Brassica pests. Abstracts 4th Pacific Rim Conference on the Biotechnology of Bacillus thuringiensis and its Environmental Impact, Canberra, 11-15 November 2001 . pp. 75

Interactions between transgenic plants, the diamondback moth and natural enemies

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 2001. Interactions between transgenic plants, the diamondback moth and natural enemies. Abstracts 4th International Workshop on the Management of Diamondback Moth and Other Crucifer Pests, Melbourne, 26-29 November 2001 . pp. 49

A tiered testing scheme for the assessment of effects of GM crops on arthropod natural enemies

C2 - Non-edited contributions to conferences

Schuler, T. H., Poppy, G. M. and Denholm, I. 2001. A tiered testing scheme for the assessment of effects of GM crops on arthropod natural enemies. Abstracts Workshop on Risk Assessment Methods for Genetically Modified Plants - Current Trends and New Developments, Ceske Budejovice, 13-15 September 2001 .

Can aphid-induced plant signals be transmitted aerially and through the rhizosphere?

A - Papers appearing in refereed journals

Chamberlain, K., Guerrieri, E., Pennacchio, F., Pettersson, J., Pickett, J. A., Poppy, G. M., Powell, W., Wadhams, L. J. and Woodcock, C. M. 2001. Can aphid-induced plant signals be transmitted aerially and through the rhizosphere? Biochemical Systematics And Ecology. 29, pp. 1063-1074.

Population-scale laboratory studies of the effect of transgenic plants on nontarget insects

A - Papers appearing in refereed journals

Schuler, T. H., Denholm, I., Jouanin, L., Clark, S. J., Clark, A. J. and Poppy, G. M. 2001. Population-scale laboratory studies of the effect of transgenic plants on nontarget insects. Molecular Ecology. 10 (7), pp. 1845-1853. https://doi.org/10.1046/j.0962-1083.2001.01309.x

Comparison of two field-scale approaches for the study of effects of insecticides on polyphagous predators in cereals

A - Papers appearing in refereed journals

Kennedy, P. J., Conrad, K. F., Perry, J. N., Powell, D., Aegerter, J., Todd, A. D., Walters, K. F. A. and Powell, W. 2001. Comparison of two field-scale approaches for the study of effects of insecticides on polyphagous predators in cereals. Applied Soil Ecology. 17 (3), pp. 253-266. https://doi.org/10.1016/S0929-1393(01)00142-1

Switching on plant genes by external chemical signals

A - Papers appearing in refereed journals

Pickett, J. A. and Poppy, G. M. 2001. Switching on plant genes by external chemical signals. Trends in Plant Science. 6, pp. 137-139.

Direct and indirect sublethal effects of Galanthus nivalis agglutinin (GNA) on the development of a potato-aphid parasitoid, Aphelinus abdominalis (Hymenoptera: Aphelinidae)

A - Papers appearing in refereed journals

Couty, A., De La Vina, G., Clark, S. J., Kaiser, L., Pham-Delegue, M-H. and Poppy, G. M. 2001. Direct and indirect sublethal effects of Galanthus nivalis agglutinin (GNA) on the development of a potato-aphid parasitoid, Aphelinus abdominalis (Hymenoptera: Aphelinidae). Journal of Insect Physiology. 47 (6), pp. 553-561. https://doi.org/10.1016/S0022-1910(00)00148-7

Repellency of non-host plants to oilseed rape pests

C2 - Non-edited contributions to conferences

Stevenson, A. L., Osborne, J. L. and Powell, W. 2001. Repellency of non-host plants to oilseed rape pests. Abstracts British Ecological Society Winter Meeting, Birmingham, 3-5 January 2001 . pp. 56

A simple sequence repeat-based linkage map of barley

A - Papers appearing in refereed journals

Ramsay, L., Macaulay, M., Degli Ivanissevich, S., Maclean, K., Cardle, L., Fuller, J., Edwards, K. J., Tuvesson, S., Morgante, M., Massari, A., Maestri, E., Marmiroli, N., Sjakste, T., Ganal, M., Powell, W. and Waugh, R. 2000. A simple sequence repeat-based linkage map of barley. Genetics. 156, pp. 1997-2005.

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

The use of field margins in the manipulation of parasitoids for aphid control in arable crops

C1 - Edited contributions to conferences/learned societies

Powell, W. 2000. The use of field margins in the manipulation of parasitoids for aphid control in arable crops. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2000 . pp. 579-584

Aphid-induced plant volatiles influencing parasitoid behaviour

C2 - Non-edited contributions to conferences

Poppy, G. M., Powell, W., Guerrieri, E. and Pennacchio, F. 2000. Aphid-induced plant volatiles influencing parasitoid behaviour. Abstract Book 1: 21st International Congress of Entomology, Foz do Iguassu, Brazil, 20-26 August 2000 .

Host selection strategies by the aphid parasitoid Aphidius ervi

C2 - Non-edited contributions to conferences

Pennacchio, F., Battaglia, D., Guerrieri, E., Poppy, G. M., Powell, W., Romano, A. and Tranfaglia, A. 2000. Host selection strategies by the aphid parasitoid Aphidius ervi. Abstracts Book 1: 21st International Congress of Entomology, Foz do Iguassu, Brazil, 20-26 August 2000 .

Principles for regulatory testing and interpretation of semi-field and field studies with non-target arthropods

A - Papers appearing in refereed journals

Candolfi, M., Bigler, F., Campbell, P., Heimbach, U., Schmuck, R., Angeli, G., Bakker, F., Brown, K., Carli, G., Dinter, A., Forti, D., Forster, R., Gathmann, A., Hassan, S., Mead-Briggs, M., Melandri, M., Neuwmann, P., Pasqualini, E., Powell, W., Reboulet, J-N., Romijn, K., Sechser, B., Thieme, Ufer, A., Vergnet, Ch. and Vogt, H. 2000. Principles for regulatory testing and interpretation of semi-field and field studies with non-target arthropods. Anzeiger fur Schadlingskunde/Journal of Pest Science. 73 (6), pp. 141-147.

Movement of aphid parasitoids over different spatial scales studied using molecular markers

C2 - Non-edited contributions to conferences

Loxdale, H. D., Brookes, C. P. and Powell, W. 2000. Movement of aphid parasitoids over different spatial scales studied using molecular markers. Abstracts 21st International Congress of Entomology, Foz de Iguassu, Brazil, 20-26 August 2000 . pp. 2

Recommendations for assessing effects of GM crops on non-target organisms

C1 - Edited contributions to conferences/learned societies

Schuler, T. H., Poppy, G. M. and Denholm, I. 2000. Recommendations for assessing effects of GM crops on non-target organisms. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2000 . pp. 1221-1228

Fitting host-parasitoid models with CV2>1 using hierarchical generalized linear models

A - Papers appearing in refereed journals

Perry, J. N., Noh, M. S., Lee, Youngsook, Alston, R. D., Mohd Norowi, H., Powell, W. and Rennolls, K. 2000. Fitting host-parasitoid models with CV2>1 using hierarchical generalized linear models. Proceedings of the Royal Society of London Series B Biological Sciences. 267, pp. 2043-2048.

Physical and chemical cues influencing the oviposition behaviour of Aphidius ervi

A - Papers appearing in refereed journals

Battaglia, D., Poppy, G. M., Powell, W., Romano, A., Tranfaglia, A. and Pennacchio, F. 2000. Physical and chemical cues influencing the oviposition behaviour of Aphidius ervi. Entomologia Experimentalis et Applicata. 94 (3), pp. 219-227. https://doi.org/10.1046/j.1570-7458.2000.00623.x

GM crops: environmental risks and non-target effects

A - Papers appearing in refereed journals

Poppy, G. M. 2000. GM crops: environmental risks and non-target effects. Trends in Plant Science. 5, pp. 4-6.

The role of plant chemical cues in determining host preference in the generalist aphid parasitoid Aphidius colemani

A - Papers appearing in refereed journals

Storeck, A., Poppy, G. M., Van Emden, H. F. and Powell, W. 2000. The role of plant chemical cues in determining host preference in the generalist aphid parasitoid Aphidius colemani. Entomologia Experimentalis et Applicata. 97 (1), pp. 41-46. https://doi.org/10.1046/j.1570-7458.2000.00714.x

Impact of GM plants on the non-target arthropod fauna

C1 - Edited contributions to conferences/learned societies

Schuler, T. H., Poppy, G. M., Woiwod, I. P. and Denholm, I. 2000. Impact of GM plants on the non-target arthropod fauna. Proceedings WHO Seminar on the Release of Genetically Modified Organisms in the Environment: is it a Health Hazard?, Rome, 7-9 September 2000 .

New roles for cis-jasmone as an insect semiochemical and in plant defense

A - Papers appearing in refereed journals

Birkett, M. A., Campbell, C. A. M., Chamberlain, K., Guerrieri, E., Hick, A. J., Martin, J. L., Matthes, M. C., Napier, J. A., Pettersson, J., Pickett, J. A., Poppy, G. M., Pow, E. M., Pye, B. J., Smart, L. E., Wadhams, G. H., Wadhams, L. J. and Woodcock, C. M. 2000. New roles for cis-jasmone as an insect semiochemical and in plant defense. Proceedings of the National Academy of Sciences. 97 (16), pp. 9329-9334. https://doi.org/10.1073/pnas.160241697

Interactions between transgenic oilseed rape and parasitoids

C2 - Non-edited contributions to conferences

Schuler, T. H., Potting, R. J. P., Denholm, I. and Poppy, G. M. 2000. Interactions between transgenic oilseed rape and parasitoids. Abstract Book 1: 21st International Congress of Entomology, Foz do Iguassu, Brazil, 20-26 August 2000 . pp. 314

GM technology: the risks and benefits

G - Articles in popular magazines and other technical publications

Poppy, G. M. 2000. GM technology: the risks and benefits. Science in Parliament. 57(2), pp. 8-9.

The effect of spatial scale on interactions between two weevils and their parasitoid

A - Papers appearing in refereed journals

Mohd Norowi, Hamid, Perry, J. N., Powell, W. and Rennolls, K. 2000. The effect of spatial scale on interactions between two weevils and their parasitoid. Ecological Entomology. 25 (2), pp. 188-196. https://doi.org/10.1046/j.1365-2311.2000.00242.x

Ontogeny of orientation flight in the honeybee revealed by harmonic radar

A - Papers appearing in refereed journals

Capaldi, E. A., Smith, A. D., Osborne, J. L., Fahrbach, S. E., Farris, S. M., Reynolds, D. R., Edwards, A. S., Martin, A., Robinson, G. E., Poppy, G. M. and Riley, J. R. 2000. Ontogeny of orientation flight in the honeybee revealed by harmonic radar. Nature. 403 (6769), pp. 537-540. https://doi.org/10.1038/35000564

The influence of floral character on the foraging behaviour of the hoverfly, Episyrphus balteatus

A - Papers appearing in refereed journals

Sutherland, J. P., Sullivan, M. S. and Poppy, G. M. 1999. The influence of floral character on the foraging behaviour of the hoverfly, Episyrphus balteatus. Entomologia Experimentalis et Applicata. 93 (2), pp. 157-164. https://doi.org/10.1046/j.1570-7458.1999.00574.x

Parasitoid hosts

B - Book chapters etc edited externally

Powell, W. 1999. Parasitoid hosts. in: Hardie, J. and Minks, A. K. (ed.) Pheromones of non-lepidopteran insects associated with agricultural plants Wallingford, Oxon CAB International (CABI). pp. 405-427

The role of plant derived volatiles and learning in long range host-searching by the specialist parasitoid Cotesia plutellae (Hymenoptera: Braconidae)

C2 - Non-edited contributions to conferences

Potting, R. P. J., Poppy, G. M. and Schuler, T. H. 1999. The role of plant derived volatiles and learning in long range host-searching by the specialist parasitoid Cotesia plutellae (Hymenoptera: Braconidae). Abstracts Internationale Entomologische Tagung, Basel, March 1999 . pp. 179

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.

Aphid-induced plant volatiles and the specific attraction of aphid parasitoids

C2 - Non-edited contributions to conferences

Poppy, G. M. and Powell, W. 1999. Aphid-induced plant volatiles and the specific attraction of aphid parasitoids. Abstracts 14th International Plant Protection Congress, Jerusalem, July 1999 .

Insect resistant GM plants - a new opportunity or a threat to IPM?

C2 - Non-edited contributions to conferences

Poppy, G. M. 1999. Insect resistant GM plants - a new opportunity or a threat to IPM? Abstracts 51st International Symposium on Crop Protection, Gent, 4 May 1999 .

Insect resistant transgenic plants - assessing the threat and exploiting the opportunity

C2 - Non-edited contributions to conferences

Poppy, G. M. 1999. Insect resistant transgenic plants - assessing the threat and exploiting the opportunity. Abstracts Meeting on Genetically Modified Crops and the Environment, Edinburgh, 22-31 September 1999 .

Impact of GM crops on the environment (with emphasis on non-target organisms)

C2 - Non-edited contributions to conferences

Poppy, G. M. 1999. Impact of GM crops on the environment (with emphasis on non-target organisms). Abstracts Agriculture and the Countryside: Seeking a Compromise. NFU/WI/IOD Meeting, 16 March 1999 .

How to assess any ecological impacts of insect resistant transgenic crops?

C2 - Non-edited contributions to conferences

Poppy, G. M. 1999. How to assess any ecological impacts of insect resistant transgenic crops? Abstracts Sino-UK Biosafety Seminar, Beijing, 4-5 March 1999 .

Induction and systemic release of herbivore-induced plant volatiles mediating in-flight orientation of Aphidius ervi

A - Papers appearing in refereed journals

Guerrieri, E., Poppy, G. M., Powell, W., Tremblay, E. and Pennacchio, F. 1999. Induction and systemic release of herbivore-induced plant volatiles mediating in-flight orientation of Aphidius ervi. Journal of Chemical Ecology. 25, pp. 1247-1261.

Responses to aphid sex pheromones by the pea aphid parasitoids Aphidius ervi and Aphidius eadyi

A - Papers appearing in refereed journals

Glinwood, R. T., Du, Y-J. and Powell, W. 1999. Responses to aphid sex pheromones by the pea aphid parasitoids Aphidius ervi and Aphidius eadyi. Entomologia Experimentalis et Applicata. 92 (2), pp. 227-232. https://doi.org/10.1046/j.1570-7458.1999.00541.x

Effect of snowdrop-lectin GNA (Galanthus nivalis ) agglutinin on an aphid parasitoid, Aphelinus abdominalis

C2 - Non-edited contributions to conferences

Couty, A., De La Vina, G. and Poppy, G. M. 1999. Effect of snowdrop-lectin GNA (Galanthus nivalis ) agglutinin on an aphid parasitoid, Aphelinus abdominalis. Abstracts ISCE 99 Chemical Ecology Meeting, Marseille, 13-17 November 1999 .

Parasitoid behaviour and Bt plants

A - Papers appearing in refereed journals

Schuler, T. H., Potting, R. P. J., Denholm, I. and Poppy, G. M. 1999. Parasitoid behaviour and Bt plants. Nature. 400 (6747), p. 825. https://doi.org/10.1038/23605

The role of volatiles from cruciferous plants and pre-flight experience in the foraging behaviour of the specialist parasitoid Cotesia plutellae

A - Papers appearing in refereed journals

Potting, R. P. J., Poppy, G. M. and Schuler, T. H. 1999. The role of volatiles from cruciferous plants and pre-flight experience in the foraging behaviour of the specialist parasitoid Cotesia plutellae. Entomologia Experimentalis et Applicata. 93 (1), pp. 87-95. https://doi.org/10.1046/j.1570-7458.1999.00565.x

The effect of spatial scale on interactions between two weevils and their food plant

A - Papers appearing in refereed journals

Hamid, Mohd Norowi, Perry, J. N., Powell, W. and Rennolls, K. 1999. The effect of spatial scale on interactions between two weevils and their food plant. Acta Oecologica - International journal of ecology. 20, pp. 537-549.

Aphids, predators and parasitoids

C1 - Edited contributions to conferences/learned societies

Wadhams, L. J., Birkett, M. A., Powell, W. and Woodcock, C. M. 1999. Aphids, predators and parasitoids. Goode, J. A. and Chadwick, D. J. (ed.) Insect-plant Interactions and Induced Plant Defence. Novartis Foundation Symposium 223 . John Wiley & Sons Chichester, West Sussex. pp. 60-73

Potential side-effects of insect-resistant transgenic plants on arthropod natural enemies

A - Papers appearing in refereed journals

Schuler, T. H., Poppy, G. M., Kerry, B. R. and Denholm, I. 1999. Potential side-effects of insect-resistant transgenic plants on arthropod natural enemies. Trends in Biotechnology. 17, pp. 210-216.

Interactions between insect tolerant genetically modified plants and natural enemies

C1 - Edited contributions to conferences/learned societies

Schuler, T. H., Poppy, G. M., Potting, R. P. J., Denholm, I. and Kerry, B. R. 1999. Interactions between insect tolerant genetically modified plants and natural enemies. Gene Flow and Agriculture: Relevance for Transgenic Crops. British Crop Protection Council Symposium 72 . British Crop Protection Council (BCPC). pp. 197-202

Comparative responses of parasitoids to synthetic and plant-extracted nepetalactone component of aphid sex pheromones

A - Papers appearing in refereed journals

Glinwood, R. T., Du, Y-J., Smiley, D. W. M. and Powell, W. 1999. Comparative responses of parasitoids to synthetic and plant-extracted nepetalactone component of aphid sex pheromones. Journal of Chemical Ecology. 25, pp. 1481-1488.

Exploiting insect responses in identifying plant signals

C1 - Edited contributions to conferences/learned societies

Pickett, J. A., Chamberlain, K., Poppy, G. M. and Woodcock, C. M. 1999. Exploiting insect responses in identifying plant signals. Goode, J. A. and Chadwick, D. J. (ed.) Insect-plant Interactions and Induced Plant Defence. Novartis Foundation Symposium 223 . John Wiley & Sons Chichester, West Sussex. pp. 253-265

The raison d'etre of secondary plant chemicals?

A - Papers appearing in refereed journals

Poppy, G. M. 1999. The raison d'etre of secondary plant chemicals? Trends in Plant Science. 4, pp. 82-83.

Spatial aspects in modelling pest-crop interactions

C1 - Edited contributions to conferences/learned societies

Mohd Norowi, H., Perry, J. N., Powell, W. and Rennolls, K. 1999. Spatial aspects in modelling pest-crop interactions. Proceedings 5th International Conference on Plant Protection in the Tropics, Kuala Lumpur, 15-18 March 1999 . Malaysian Plant Protection Society, Kuala Lumpur, Malaysia. pp. 29-34

Olfactory conditioning of the proboscis extension in bumble bees

A - Papers appearing in refereed journals

Laloi, D., Sandoz, J. C., Picard-Nizou, A. L., Marchesi, A., Pouvreau, A., Tasei, J. N., Poppy, G. M. and Pham-Delegue, M. H. 1999. Olfactory conditioning of the proboscis extension in bumble bees. Entomologia Experimentalis et Applicata. 90 (2), pp. 123-129. https://doi.org/10.1046/j.1570-7458.1999.00430.x

Aphid sex pheromones: manipulation of beneficial insects for aphid population control

C1 - Edited contributions to conferences/learned societies

Glinwood, R. T., Smiley, D. W. M., Hardie, J., Pickett, J. A., Powell, W., Wadhams, L. J. and Woodcock, C. M. 1999. Aphid sex pheromones: manipulation of beneficial insects for aphid population control. Wiley.

Extracting oviposition stimulants for carrot fly from host-plant leaves

A - Papers appearing in refereed journals

Degen, T., Poppy, G. M. and Stadler, E. 1999. Extracting oviposition stimulants for carrot fly from host-plant leaves. Journal of Chemical Ecology. 25, pp. 89-104.

Report on the BBSRC delegation to China genetic modification and biosafety assessment, 1-5 March 1999

D1 - Technical reports: non-confidential

Dale, P., Beech, C., Beringer, J., Poppy, G. M., Sweet, J., Thomas, B. and Richards, F. C. 1999. Report on the BBSRC delegation to China genetic modification and biosafety assessment, 1-5 March 1999.

Harmonic radar observations of honey bee orientation flights

C2 - Non-edited contributions to conferences

Riley, J. R., Reynolds, D. R., Smith, A. D., Edwards, A., Capaldi, E., Fahrbach, S., Robinson, G., Osborne, J. L., Martin, A. and Poppy, G. M. 1998. Harmonic radar observations of honey bee orientation flights. Wehner, R. and Elsner, N. (ed.) Abstracts New Neuroethology on the Move: Proceedings 25th Gottingen Neurobiology Conference, 1998 . pp. 172

Interactions between transgenic plants and beneficial insects

C2 - Non-edited contributions to conferences

Schuler, T. H., Poppy, G. M., Denholm, I., Birnie, L. C., Vahed, K., Lynch, P. T., James, D. J. and Kerry, B. R. 1998. Interactions between transgenic plants and beneficial insects. Farina, A., Bossu, V. and Kennedy, J. (ed.) Proceedings Intecol 7th Internation Congress of Ecology, Florence, 19-25 July 1998 . pp. 379

Aphid sex pheromones: manipulation of beneficial insects for aphid population control

C2 - Non-edited contributions to conferences

Glinwood, R., Smiley, D. W. M., Hardie, J., Pickett, J. A., Powell, W., Wadhams, L. J. and Woodcock, C. M. 1998. Aphid sex pheromones: manipulation of beneficial insects for aphid population control. Abstracts 9th International Congress on Pesticide Chemistry: the Food-Environment Challenge, London, 2-7 August 1998 . pp. 3D-002

Assessment of risks posed by pesticides to non-target arthropods

C2 - Non-edited contributions to conferences

Birnie, L. C., Kennedy, P. J., Shaw, K. E., Denholm, I., Perry, J. N. and Powell, W. 1998. Assessment of risks posed by pesticides to non-target arthropods. Abstracts 9th International Congress on Pesticide Chemistry: the Food-Environment Challenge, London, 2-7 August 1998 . pp. 8B-025

Pest control by a community of natural enemies

C1 - Edited contributions to conferences/learned societies

Sunderland, K. D., Axelsen, J. A., Dromph, K., Freier, B., Hemptinne, J-L., Holst, N. H., Mols, P. J. M., Petersen, M. K., Powell, W., Ruggle, P., Triltsch, H. and Winder, L. 1998. Pest control by a community of natural enemies.

The complementary roles of laboratory and field testing in ecotoxicological risk assessment

C1 - Edited contributions to conferences/learned societies

Denholm, I., Birnie, L. C., Kennedy, P. J., Shaw, K. E., Perry, J. N. and Powell, W. 1998. The complementary roles of laboratory and field testing in ecotoxicological risk assessment. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1998 . pp. 583-590

Interactions between transgenic plants and beneficial insects

C2 - Non-edited contributions to conferences

Schuler, T. H., Poppy, G. M., Denholm, I., Birnie, L. C., Vahed, K., Lynch, P. T., James, D. J. and Kerry, B. R. 1998. Interactions between transgenic plants and beneficial insects. Abstracts 10th International Symposium on Insect-Plant Relationships, Oxford, 4-11 July 1998 . pp. 44

Tritrophic interactions on insect-resistant transgenic plants

C2 - Non-edited contributions to conferences

Poppy, G. M. and Schuler, T. H. 1998. Tritrophic interactions on insect-resistant transgenic plants. Abstracts 10th International Symposium on Insect-Plant Relationships, Oxford, 4-11 July 1998 . pp. 37

Direct and indirect effects of transgenic potatoes expressing the snowdrop lectin (GNA) on the aphid parasitoid, Aphidius ervi

C2 - Non-edited contributions to conferences

Couty, A., Poppy, G. M., Powell, W. and Gatehouse, A. M. R. 1998. Direct and indirect effects of transgenic potatoes expressing the snowdrop lectin (GNA) on the aphid parasitoid, Aphidius ervi. Abstracts 10th International Symposium on Insect-Plant Relationships, Oxford, 4-11 July 1998 . pp. 55

Spatial and temporal distribution of aphidophagous hoverflies (Diptera: Syrphidae) in sown wild flower patches in a winter barley crop

C1 - Edited contributions to conferences/learned societies

Sutherland, J. P. and Poppy, G. M. 1998. Spatial and temporal distribution of aphidophagous hoverflies (Diptera: Syrphidae) in sown wild flower patches in a winter barley crop. Cooper, A. and Power, J. (ed.) Species Dispersal and Land Use Processes. Proceedings 6th Annual Conference of IALE(UK), Ulster, 9-11 September 1997 . pp. 135-142

Insect-resistant transgenic plants

A - Papers appearing in refereed journals

Schuler, T. H., Poppy, G. M., Kerry, B. R. and Denholm, I. 1998. Insect-resistant transgenic plants. Trends in Biotechnology. 16 (4), pp. 168-175. https://doi.org/10.1016/S0167-7799(97)01171-2

Aphid sex pheromones to enhance parasitoid efficiency (Home-Grown Cereals Authority Project Report No. 155)

D1 - Technical reports: non-confidential

Powell, W. and Glinwood, R. T. 1998. Aphid sex pheromones to enhance parasitoid efficiency (Home-Grown Cereals Authority Project Report No. 155). H-GCA, London.

Zoophthora radicans infection inhibits the response to and production of sex pheromone in the diamondback moth

A - Papers appearing in refereed journals

Reddy, G. V. P., Furlong, M. J., Pell, J. K. and Poppy, G. M. 1998. Zoophthora radicans infection inhibits the response to and production of sex pheromone in the diamondback moth. Journal of Invertebrate Pathology. 72, pp. 167-169.

Harmonic radar as a means of tracking the pheromone-finding and pheromone-following flight of male moths

A - Papers appearing in refereed journals

Riley, J. R., Valeur, P., Smith, A. D., Reynolds, D. R., Poppy, G. M. and Lofstedt, C. 1998. Harmonic radar as a means of tracking the pheromone-finding and pheromone-following flight of male moths. Journal of Insect Behavior. 11, pp. 287-296.

Semiochemicals to increase parasitism in aphid pest control

C1 - Edited contributions to conferences/learned societies

Powell, W. 1998. Semiochemicals to increase parasitism in aphid pest control. Wiley. https://doi.org/10.1002/(SICI)1096-9063(1998110)54:3<291::AID-PS804>3.0.CO;2-9

Transgenic plants and bees: the beginning of the end or a new opportunity?

A - Papers appearing in refereed journals

Poppy, G. M. 1998. Transgenic plants and bees: the beginning of the end or a new opportunity? Bee World. 79, pp. 161-164.

Increased parasitization of aphids on trap plants alongside vials releasing synthetic aphid sex pheromone and effective range of the pheromone

A - Papers appearing in refereed journals

Glinwood, R. T., Powell, W. and Tripathi, C. P. M. 1998. Increased parasitization of aphids on trap plants alongside vials releasing synthetic aphid sex pheromone and effective range of the pheromone. Biocontrol Science and Technology. 8 (4), pp. 607-614. https://doi.org/10.1080/09583159830126

Identification of semiochemicals released during aphid feeding that attract parasitoid Aphidius ervi

A - Papers appearing in refereed journals

Du, Y., Poppy, G. M., Powell, W., Pickett, J. A., Wadhams, L. J. and Woodcock, C. M. 1998. Identification of semiochemicals released during aphid feeding that attract parasitoid Aphidius ervi. Journal of Chemical Ecology. 24, pp. 1355-1368.

Strategies involved in the location of hosts by the parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae: Aphidiinae)

A - Papers appearing in refereed journals

Powell, W., Pennacchio, F., Poppy, G. M. and Tremblay, E. 1998. Strategies involved in the location of hosts by the parasitoid Aphidius ervi Haliday (Hymenoptera: Braconidae: Aphidiinae). Biological Control. 11, pp. 104-112.

Electrophoretic study of five aphid parasitoid species of the genus Aphidius (Hymenoptera: Braconidae), including evidence for reproductively isolated sympatric populations and a cryptic species

A - Papers appearing in refereed journals

Atanassova, P., Brookes, C. P., Loxdale, H. D. and Powell, W. 1998. Electrophoretic study of five aphid parasitoid species of the genus Aphidius (Hymenoptera: Braconidae), including evidence for reproductively isolated sympatric populations and a cryptic species. Bulletin of Entomological Research. 88 (1), pp. 3-13. https://doi.org/10.1017/S000748530004150X

The use of single-species spatially explicit models

C1 - Edited contributions to conferences/learned societies

Topping, C. J., Booij, K., Daamen, R. A., Dinter, A., Heimbach, U., Kennedy, P. J., Langer, V., Perry, J. N., Powell, W., Skirvin, D., Stilmant, D., Thomas, C. F. G. and Winstone, L. 1997. The use of single-species spatially explicit models.

Herbivore-induced synomones regulating the flight behaviour of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)

C2 - Non-edited contributions to conferences

Poppy, G. M., Guerrieri, E., Powell, W., Pennacchio, F. and Tremblay, E. 1997. Herbivore-induced synomones regulating the flight behaviour of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae). Abstracts 6th European Workshop on Insect Parasitoids, Valencia, March 1997 .

Aphid-induced plant synomones affecting the foraging behaviour of the parasitoid Aphidius ervi

C2 - Non-edited contributions to conferences

Poppy, G. M., Guerrieri, E., Powell, W. and Pennacchio, F. 1997. Aphid-induced plant synomones affecting the foraging behaviour of the parasitoid Aphidius ervi. Abstracts Entomology '97, Newcastle, 10-12 September 1997 .

Transgenic plants expressing insect resistance: assessing the impact on targets and non-targets

C2 - Non-edited contributions to conferences

Poppy, G. M. 1997. Transgenic plants expressing insect resistance: assessing the impact on targets and non-targets. Abstracts European Union Concerted Action Conference on Genetic Improvement of Fruit Tree Species for the Safer Control of Pests and Diseases and for the Improvement of Fruit Harvesting Quality, Derby, 3-7 September 1997 .

Physical and chemical cues regulating the oviposition behaviour of Aphidius ervi Haliday (Hymenoptera: Braconidae)

C2 - Non-edited contributions to conferences

Battaglia, D., Pennacchio, F., Poppy, G. M., Powell, W., Romano, A. and Tranfaglia, A. 1997. Physical and chemical cues regulating the oviposition behaviour of Aphidius ervi Haliday (Hymenoptera: Braconidae). Abstracts 6th European Workshop on Insect Parasitoids, Valencia, March 1997 .

Chemically mediated associative learning in the host foraging behavior of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)

A - Papers appearing in refereed journals

Du, Y., Poppy, G. M., Powell, W. and Wadhams, L. J. 1997. Chemically mediated associative learning in the host foraging behavior of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae). Journal of Insect Behavior. 10, pp. 509-522.

Responses of individual honey bees to artificial feeders visited by themselves and to feeders visited by hivemates

A - Papers appearing in refereed journals

Williams, C. S. and Poppy, G. M. 1997. Responses of individual honey bees to artificial feeders visited by themselves and to feeders visited by hivemates. Journal of Apicultural Research. 36, pp. 105-108.

Aphid parasitoid responses to semiochemicals - genetic, conditioned or learnt?

A - Papers appearing in refereed journals

Poppy, G. M., Powell, W. and Pennacchio, F. 1997. Aphid parasitoid responses to semiochemicals - genetic, conditioned or learnt? Entomophaga. 42, pp. 193-199.

Sublethal effects of pesticides on locomotory behaviour of beneficial arthropods

C1 - Edited contributions to conferences/learned societies

Kennedy, P. J., Umoru, P. A. and Powell, W. 1997. Sublethal effects of pesticides on locomotory behaviour of beneficial arthropods. Haskell, P. T. and McEwen, P. K. (ed.) New studies in ecotoxicology . Welsh Pest Management Forum. pp. 37-41

Tritrophic interactions: improving ecological understanding and biological control?

A - Papers appearing in refereed journals

Poppy, G. M. 1997. Tritrophic interactions: improving ecological understanding and biological control? Endeavour. 21, pp. 61-65.

'Push-Pull' strategies for pest control

G - Articles in popular magazines and other technical publications

Smart, L. E., Pickett, J. A. and Powell, W. 1997. 'Push-Pull' strategies for pest control. Grain Legumes. No. 15, pp. 14-15.

The occurrence of aphid parasitoids in arable crops in northern Pakistan

C2 - Non-edited contributions to conferences

Rehman, A., Powell, W., Deadman, M. L. and Hashmi, A. A. 1997. The occurrence of aphid parasitoids in arable crops in northern Pakistan. Abstracts 3rd International Congress of Entomological Sciences, Islamabad, 18-20 March 1997 .

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).

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 .

Influence of wheat and oat cultivars on the development of the cereal aphid parasitoid Aphidius rhopalosiphi and the generalist aphid parasitoid Ephedrus plagiator

A - Papers appearing in refereed journals

Fuentes-Contreras, J. E., Powell, W., Wadhams, L. J., Pickett, J. A. and Niemeyer, H. M. 1996. Influence of wheat and oat cultivars on the development of the cereal aphid parasitoid Aphidius rhopalosiphi and the generalist aphid parasitoid Ephedrus plagiator. Annals of Applied Biology - AAB. 128 (2), pp. 181-187. https://doi.org/10.1111/j.1744-7348.1996.tb05742.x

Host preference behaviour of the aphid parasitoids Praon volucre and Praon myzophagum (Hymenoptera: Aphidiidae)

C2 - Non-edited contributions to conferences

Rehman, A., Powell, W. and Deadman, M. L. 1996. Host preference behaviour of the aphid parasitoids Praon volucre and Praon myzophagum (Hymenoptera: Aphidiidae). Abstracts 2nd International Congress of Entomological Sciences, Islamabad, 19-21 March 1996 . pp. 69-70

Reproduction of beneficial predators and parasitoids in agroecosystems in relation to habitat quality and food availability

A - Papers appearing in refereed journals

Sunderland, K. D., Bilde, T., Den Nijs, L. J. M. F., Dinter, A., Heimbach, U., Lys, J. A., Powell, W. and Toft, S. 1996. Reproduction of beneficial predators and parasitoids in agroecosystems in relation to habitat quality and food availability. Acta Jutlandica. 71(2), pp. 117-153.

Genetic influences on aphid parasitoid host selection

C2 - Non-edited contributions to conferences

Powell, W. and Rehman. A. 1996. Genetic influences on aphid parasitoid host selection.

Temporal and spatial distribution of aphidophagous syrphids (Diptera: Syrphidae) in sown wild flower patches in a winter barley crop

C2 - Non-edited contributions to conferences

Sutherland, J. P. and Poppy, G. M. 1996. Temporal and spatial distribution of aphidophagous syrphids (Diptera: Syrphidae) in sown wild flower patches in a winter barley crop. Abstracts British Ecological Society Winter Meeting, Warwick, December 1996 . pp. 90

Strategies involved in the location of hosts by the aphid parasitoid Aphidius ervi Halliday (Hymenoptera: Braconidae: Aphidiinae)

C2 - Non-edited contributions to conferences

Powell, W., Pennacchio, F., Poppy, G. M. and Tremblay, E. 1996. Strategies involved in the location of hosts by the aphid parasitoid Aphidius ervi Halliday (Hymenoptera: Braconidae: Aphidiinae). Proceedings 20th International Congress of Entomology, Firenze, 25-31 August 1996 . pp. 623

Dispersal of entomopathogenic fungi by manipulation of insect behaviour

C2 - Non-edited contributions to conferences

Pell, J. K., Furlong, M. J., Reddy, G. V. P., Poppy, G. M. and Roy, H. E. 1996. Dispersal of entomopathogenic fungi by manipulation of insect behaviour. Proceedings 29th Annual Meeting of the Society for Invertebrate Pathology and 3rd International Colloquium on Bacillus thuringiensis , Cordoba, September 1996 . pp. 61

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. R., 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 .

The role of host-induced plant synomones on in-flight orientation of the aphid parasitoid Aphidius ervi Haliday (Hymenoptera, Braconidae)

C2 - Non-edited contributions to conferences

Guerrieri, E., Du, Y.J., Poppy, G. M., Powell, W., Pennacchio, F. and Tremblay, E. 1996. The role of host-induced plant synomones on in-flight orientation of the aphid parasitoid Aphidius ervi Haliday (Hymenoptera, Braconidae). Proceedings 20th International Congress of Entomology, Firenze, 25-31 August 1996 . pp. 647

Relative importance of semiochemicals from first and second trophic levels in host foraging behaviour of Aphidius ervi

A - Papers appearing in refereed journals

Du, Y.J., Poppy, G. M. and Powell, W. 1996. Relative importance of semiochemicals from first and second trophic levels in host foraging behaviour of Aphidius ervi. Journal of Chemical Ecology. 22, pp. 1591-1605.

Colour vision and oviposition behaviour in Aphidius ervi Haliday (Hymenoptera, Braconidae)

C2 - Non-edited contributions to conferences

Battaglia, D., Pennacchio, F., Romano, A., Tranfaglia, A., Poppy, G. M. and Powell, W. 1996. Colour vision and oviposition behaviour in Aphidius ervi Haliday (Hymenoptera, Braconidae). Proceedings 20th International Congress of Entomology, Firenze, 25-31 August 1996 . pp. 647

The foraging efficiency of the parasitoid Diaeretiella rapae (Hymenoptera: Braconidae) in relation to the spatial distribution of aphids on plants

A - Papers appearing in refereed journals

Powell, W. and Nickless, A. 1996. The foraging efficiency of the parasitoid Diaeretiella rapae (Hymenoptera: Braconidae) in relation to the spatial distribution of aphids on plants. Acta Jutlandica. 71(2), pp. 97-106.

Sex pheromone of aphid parasitoid Praon volucre (Hymenoptera, Braconidae)

A - Papers appearing in refereed journals

Nazzi, F., Powell, W., Wadhams, L. J. and Woodcock, C. M. 1996. Sex pheromone of aphid parasitoid Praon volucre (Hymenoptera, Braconidae). Journal of Chemical Ecology. 22, pp. 1169-1175.

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

Aphid attack - working on the insides

G - Articles in popular magazines and other technical publications

Powell, W. 1996. Aphid attack - working on the insides. Farming and Conservation. April 1996, pp. 12-14.

Insects on the move

G - Articles in popular magazines and other technical publications

Poppy, G. M. 1996. Insects on the move. BBSRC Business. January 1996, pp. 10-12.

Effect of pirimicarb on the foraging behaviour of Diaeretiella rapae (Hymenoptera: Braconidae) on host-free and infested oilseed rape plants

A - Papers appearing in refereed journals

Umoru, P. A., Powell, W. and Clark, S. J. 1996. Effect of pirimicarb on the foraging behaviour of Diaeretiella rapae (Hymenoptera: Braconidae) on host-free and infested oilseed rape plants. Bulletin of Entomological Research. 86 (2), pp. 193-201. https://doi.org/10.1017/S0007485300052445

Fatal attraction

G - Articles in popular magazines and other technical publications

Powell, W. 1995. Fatal attraction. Grower. 124(5), pp. 17-18.

Populations and communities

B - Book chapters etc edited externally

Powell, W. and Walton, M. P. 1995. Populations and communities. in: Jervis, M. A. and Kidd, N. (ed.) Insect natural enemies: practical approaches to their study and evaluation Chapman & Hall, London. pp. 223-292

Within-field spatial heterogeneity of arthropod predators and parasitoids

C1 - Edited contributions to conferences/learned societies

Powell, W., Hawthorne, A., Hemptinne, J. L., Holopainen, J. K., Den Nijs, L. J. F. M., Riedel, W. and Ruggle, P. 1995. Within-field spatial heterogeneity of arthropod predators and parasitoids.

Using mark-release-recapture techniques to study the influence of spatial heterogeneity on carabids

C1 - Edited contributions to conferences/learned societies

Powell, W. and Ashby, J. E. 1995. Using mark-release-recapture techniques to study the influence of spatial heterogeneity on carabids.

Variations of body length, weight, fat content and survival in Coccinella septempunctata at different hibernation sites

A - Papers appearing in refereed journals

Zhou, X-L, Honek, A., Powell, W. and Carter, N. 1995. Variations of body length, weight, fat content and survival in Coccinella septempunctata at different hibernation sites. Entomologia Experimentalis et Applicata. 75 (2), pp. 99-107.

Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91

A - Papers appearing in refereed journals

Prew, R. D., Ashby, J. E., Bacon, E. T. G., Christian, D. G., Gutteridge, R. J., Jenkyn, J. F., Powell, W. and Todd, A. D. 1995. Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91. The Journal of Agricultural Science. 124 (2), pp. 173-194. https://doi.org/10.1017/S0021859600072853

The aphid sex pheromone: a novel host location cur for the parasitoid Praon volucre

C1 - Edited contributions to conferences/learned societies

Lilley, R., Hardie, J., Powell, W. and Wadhams, L. J. 1994. The aphid sex pheromone: a novel host location cur for the parasitoid Praon volucre. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1994 . Wiley.

Electrophoretic studies of geographic and host strains of the aphid parasitoid Aphidius ervi

C2 - Non-edited contributions to conferences

Atanassova, P., Powell, W., Brookes, C. and Loxdale, H. 1994. Electrophoretic studies of geographic and host strains of the aphid parasitoid Aphidius ervi. Abstracts 5th European Congress of Entomology, York, 29th August-2nd September 1994 . pp. 251

Seasonal distribution and aerial movement of adult coccinellids on farmland

A - Papers appearing in refereed journals

Zhou, X-L, Carter, N. and Powell, W. 1994. Seasonal distribution and aerial movement of adult coccinellids on farmland. Biocontrol Science and Technology. 4, pp. 167-175.

Nemec and Stary's "population diversity centre" hypothesis for aphid parasitoids revisited

A - Papers appearing in refereed journals

Powell, W. 1994. Nemec and Stary's "population diversity centre" hypothesis for aphid parasitoids revisited. Norwegian Journal of Agricultural Sciences. Supplement 16, pp. 163-169.

The responses of Praon spp. parasitoids to aphid sex pheromone components in the field

A - Papers appearing in refereed journals

Hardie, J., Hick, A. J., Holler, C., Mann, J., Merritt, L., Nottingham, S. F., Powell, W., Wadhams, L. J., Witthinrich, J. and Wright, A. F. 1994. The responses of Praon spp. parasitoids to aphid sex pheromone components in the field. Entomologia Experimentalis et Applicata. 71 (2), pp. 95-99.

Design of field trials and its influence on the detection of pesticide side effects

C2 - Non-edited contributions to conferences

Kennedy, P. J., Carter, N., Walters, K. F. A., Perry, J. N., Powell, D. and Powell, W. 1994. Design of field trials and its influence on the detection of pesticide side effects. Abstracts Ecotoxicology - Ecological Dimensions: Proceedings 5th Annual Meeting of SETAC-Europe (UK Branch), Sheffield, 12-14 September 1994 . pp. 11

Design of field trials and its influence on the detection of pesticide side effects

C2 - Non-edited contributions to conferences

Kennedy, P. J., Carter, N., Walters, K. F. A., Perry, J. N., Powell, D. and Powell, W. 1994. Design of field trials and its influence on the detection of pesticide side effects. Abstracts 5th European Congress of Entomology, York, 29th August-2nd September 1994 . pp. 276

The field attraction of female %Praon parasitoids to an aphid sex pheromone

C2 - Non-edited contributions to conferences

Lilley, R. I., Hardie, J., Powell, W. and Wadhams, L. J. 1993. The field attraction of female %Praon parasitoids to an aphid sex pheromone. Abstracts 5th International Symposium of the Global IOBC Working Group on the Ecology of Aphidophaga: Behavioural Ecology, Augmentation and Enhancement of Aphidophaga, Antibes, 6-10 September 1993 .

Electroantennogram and olfactometer responses of aphid parasitoids to nepetalactone, a component of aphid sex pheromones

C2 - Non-edited contributions to conferences

Hardie, J., Isaacs, R., Nazzi, F., Powell, W., Wadhams, L. J. and Woodcock, C. M. 1993. Electroantennogram and olfactometer responses of aphid parasitoids to nepetalactone, a component of aphid sex pheromones. Abstracts 5th International Symposium of the Global IOBC Working Group on the Ecology of Aphidophaga: Behavioural Ecology, Augmentation and Enhancement of Aphidophaga, Antibes, 6-10 September 1993 .

Responses of the parasitoid Praon volucre (Hymenoptera: Braconidae) to aphid sex pheromone lures in cereal fields in autumn: implications for parasitoid manipulation

A - Papers appearing in refereed journals

Powell, W., Hardie, J., Hick, A. J., Holler, C., Mann, J., Merritt, L., Nottingham, S. F., Wadhams, L. J., Witthinrich, J. and Wright, A. F. 1993. Responses of the parasitoid Praon volucre (Hymenoptera: Braconidae) to aphid sex pheromone lures in cereal fields in autumn: implications for parasitoid manipulation. European Journal of Entomology. 90, pp. 435-438.

Sex pheromones in the cereal aphid parasitoids Praon volucre and Aphidius rhopalosiphi

A - Papers appearing in refereed journals

Decker, U. M., Powell, W. and Clark, S. J. 1993. Sex pheromones in the cereal aphid parasitoids Praon volucre and Aphidius rhopalosiphi. Entomologia Experimentalis et Applicata. 69 (1), pp. 33-39. https://doi.org/10.1111/j.1570-7458.1993.tb01725.x

Management of genetics of biological control introductions

A - Papers appearing in refereed journals

Hopper, K. R., Roush, R. T. and Powell, W. 1993. Management of genetics of biological control introductions. Annual Review of Entomology. 38, pp. 27-51.

The relationship between primary parasitoids and hyperparasitoids of cereal aphids: an analysis of field data

A - Papers appearing in refereed journals

Holler, C., Borgemeister, C. W., Haardt, H. and Powell, W. 1993. The relationship between primary parasitoids and hyperparasitoids of cereal aphids: an analysis of field data. Journal of Animal Ecology. 62 (1), pp. 12-21. https://doi.org/10.2307/5478

Synomones and kairomones from plants and honeydew in susceptible and resistant varieties; their importance to natural enemies.

C2 - Non-edited contributions to conferences

Powell, W. 1992. Synomones and kairomones from plants and honeydew in susceptible and resistant varieties; their importance to natural enemies. Abstracts 19th International Congress of Entomology, Beijing, 1992 .

Genetics of biological control introductions

C2 - Non-edited contributions to conferences

Hopper, K. R., Rousch, R. T. and Powell, W. 1992. Genetics of biological control introductions. Abstracts 19th International Congress of Entomology, Beijing, 1992 .

Genetics of biological control introductions

C2 - Non-edited contributions to conferences

Hopper, K. R., Roush, R. T. and Powell, W. 1992. Genetics of biological control introductions. Abstracts 19th International Congress of Entomology, Beijing, 1992 .

Tritrophic influences on aphid parasitoids (Hym.,Braconidae:Aphidiinae)

C1 - Edited contributions to conferences/learned societies

Powell, W. 1992. Tritrophic influences on aphid parasitoids (Hym.,Braconidae:Aphidiinae).

Semiochemically-mediated behaviour

B - Book chapters etc edited externally

Poppy, G. M. 1992. Semiochemically-mediated behaviour. in: Crampton, J. M. and Eggleston, P. (ed.) Insect Molecular Science. Proceedings 16th Symposium of the Royal Entomological Society London, Imperial College London, September 1991 Academic Press, London. pp. 163-172

Honeydew as an ovipositional stimulant for two species of syrphids

A - Papers appearing in refereed journals

Budenberg, W. J. and Powell, W. 1992. Honeydew as an ovipositional stimulant for two species of syrphids. Entomologia Experimentalis et Applicata. 64, pp. 57-61.

The influence of aphids and honeydew on the leaving rate of searching aphid parasitoids from wheat plants

A - Papers appearing in refereed journals

Budenberg, W. J., Powell, W. and Clark, S. J. 1992. The influence of aphids and honeydew on the leaving rate of searching aphid parasitoids from wheat plants. Entomologia Experimentalis et Applicata. 63 (3), pp. 259-264. https://doi.org/10.1111/j.1570-7458.1992.tb01582.x

The influence of host food plants on host recognition by four aphidiine parasitoids (Hymenoptera: Braconidae)

A - Papers appearing in refereed journals

Powell, W. and Wright, A. F. 1992. The influence of host food plants on host recognition by four aphidiine parasitoids (Hymenoptera: Braconidae). Bulletin of Entomological Research. 81 (4), pp. 449-453. https://doi.org/10.1017/S0007485300032028

Ecology and population dynamics: Chairman's summing up and comments for the session on ecology and population dynamics

C2 - Non-edited contributions to conferences

Powell, W. 1991. Ecology and population dynamics: Chairman's summing up and comments for the session on ecology and population dynamics. Proceedings 4th European Parasitoid Workshop, Perugia, Italy, 3-5 April 1991 . pp. 5-6

Biochemical interactions between plant-herbivore-parasitoid

C1 - Edited contributions to conferences/learned societies

Pickett, J. A., Powell, W., Wadhams, L. J., Woodcock, C. M. and Wright, A. F. 1991. Biochemical interactions between plant-herbivore-parasitoid. Insect Parasitoids: 4th European Workshop, Perugia, April 1991.

Cereal aphids and their natural enemies

C1 - Edited contributions to conferences/learned societies

Wratten, S. D. and Powell, W. 1991. Cereal aphids and their natural enemies. Carter, N., Potts, G. R., Darbyshire, J. F. and Firbank, L. G. (ed.) The Ecology of Temperate Cereal Fields. Proceedings 32nd Symposium of the British Ecological Society with the Association of Applied Biologists, University of Cambridge, 1991. Blackwell Scientific Publications, Oxford. pp. 233-257

The influence of semiochemicals on the behaviour of cereal aphid parasitoids (Hymenoptera)

C1 - Edited contributions to conferences/learned societies

Powell, W., Decker, U. M. and Budenberg, W. J. 1991. The influence of semiochemicals on the behaviour of cereal aphid parasitoids (Hymenoptera). Chambers, R. J., Hodek, I., Dixon, A. F. G. and Polgar, L. (ed.) Behaviour and impact of Aphidophaga. SPB Academic Publishing, The Hague. pp. 67-71

Synthetic aphid sex pheromone lures female parasitoids

A - Papers appearing in refereed journals

Hardie, J., Nottingham, S. F., Powell, W. and Wadhams, L. J. 1991. Synthetic aphid sex pheromone lures female parasitoids. Entomologia Experimentalis et Applicata. 61 (1), pp. 97-99.

Conservation and manipulation of aphid parasitoids

C1 - Edited contributions to conferences/learned societies

Powell, W., Budenberg, W. J., Decker, U. M. and Wright, A. F. 1990. Conservation and manipulation of aphid parasitoids. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 1990. pp. 185-690

Electrophoresis as a tool for estimating levels of hymenopterous parasitism in field populations of the cereal aphid, Sitobion avenae .

A - Papers appearing in refereed journals

Walton, M. P., Powell, W., Loxdale, H. D. and Allen-Williams, L. J. 1990. Electrophoresis as a tool for estimating levels of hymenopterous parasitism in field populations of the cereal aphid, Sitobion avenae . Entomologia Experimentalis et Applicata. 54 (3), pp. 271-279.

The use of electrophoresis in the study of hymenopteran parasitoids of agricultural pests.

B - Book chapters etc edited externally

Powell, W. and Walton, M. P. 1989. The use of electrophoresis in the study of hymenopteran parasitoids of agricultural pests. in: Electrophoretic studies on agricultural pests. Systematics Association Special Volume H.D. Loxdale & J. Den Hollander eds Clarendon Press, Oxford.

Effectiveness of different insecticides applied at various growth stages to control aphids on winter wheat.

A - Papers appearing in refereed journals

Carter, N., Powell, W., Wright, A. F. and Ashby, J. E. 1989. Effectiveness of different insecticides applied at various growth stages to control aphids on winter wheat. Crop Protection. 8, pp. 271-276.

Observations on the effects of an autumn application of a pyrethroid insecticide on non-target predatory species in winter cereals.

C1 - Edited contributions to conferences/learned societies

Purvis, G., Carter, N. and Powell, W. 1988. Observations on the effects of an autumn application of a pyrethroid insecticide on non-target predatory species in winter cereals. Integrated crop protection in cereals. Proceedings of the EC Experts' Group Meeting, Littlehampton, 1986. Eds R. Cavalloro & K. Sunderland. pp. 153-159

Honeydew as a kairomone for aphid parasitoids and hyperparasitoids.

C1 - Edited contributions to conferences/learned societies

Budenberg, W. J. and Powell, W. 1988. Honeydew as a kairomone for aphid parasitoids and hyperparasitoids. &nbsp;Proceedings British Crop Protection Conference - Pests and Diseases, Brighton, 1988, 1149-1154..

The abilities of the aphid parasitoids Aphidius ervi Haliday and A. rhopalosiphi De Stefani Perez (Hymenoptera: Braconidae) to transfer between different known host species and the implications for the use of alternative hosts in pest control strategies.

A - Papers appearing in refereed journals

Powell, W. and Wright, A. F. 1988. The abilities of the aphid parasitoids Aphidius ervi Haliday and A. rhopalosiphi De Stefani Perez (Hymenoptera: Braconidae) to transfer between different known host species and the implications for the use of alternative hosts in pest control strategies. Bulletin of Entomological Research. 78 (4), pp. 683-693. https://doi.org/10.1017/S0007485300015546

Accurate estimation of invertebrate density in cereals.

G - Articles in popular magazines and other technical publications

Sunderland, K. D., Hawkes, C., Stevenson, J. H., Mcbride, T., Smart, L. E., Sopp, P. I., Powell, W., Chambers, R. J. and Carter, O. C. R. 1987. Accurate estimation of invertebrate density in cereals. Bulletin IOBC/WPRS/SROP . 10, pp. 71-81.

Interference between parasitoids (Hym.: Aphididae) and fungi (Entomophthorales) attacking cereal aphids.

A - Papers appearing in refereed journals

Powell, W., Wilding, N., Brobyn, P. J. and Clark, S. J. 1986. Interference between parasitoids (Hym.: Aphididae) and fungi (Entomophthorales) attacking cereal aphids. Entomophaga. 31, pp. 293-302. https://doi.org/10.1007/BF02373339

The influence of weeds on aphid-specific natural enemies in winter wheat.

A - Papers appearing in refereed journals

Powell, W., Dean, G. J. and Wilding, N. 1986. The influence of weeds on aphid-specific natural enemies in winter wheat. Crop Protection. 5, pp. 182-189.

Biocontrol of cereal aphids in the United Kingdom by a range of natural enemies.

G - Articles in popular magazines and other technical publications

Powell, W. 1986. Biocontrol of cereal aphids in the United Kingdom by a range of natural enemies.

Enhancing parasitoid activity in crops.

G - Articles in popular magazines and other technical publications

Powell, W. 1986. Enhancing parasitoid activity in crops.

Assessment of resistance of commercial varieties of winter-wheat to cereal aphids

A - Papers appearing in refereed journals

Dewar, A. M., Carter, N. and Powell, W. 1985. Assessment of resistance of commercial varieties of winter-wheat to cereal aphids. Annals of Applied Biology - AAB. 106, pp. 168-169.

Effects of pirimicarb, dimethoate and benomyl on natural enemies of cereal aphids in winter wheat

A - Papers appearing in refereed journals

Powell, W., Dean, G. J. and Bardner, R. 1985. Effects of pirimicarb, dimethoate and benomyl on natural enemies of cereal aphids in winter wheat. Annals of Applied Biology - AAB. 106 (2), pp. 235-242. https://doi.org/10.1111/j.1744-7348.1985.tb03113.x

The influence of weeds on polyphagous arthropod predators in winter wheat

A - Papers appearing in refereed journals

Powell, W., Dean, G. J. and Dewar, A. 1985. The influence of weeds on polyphagous arthropod predators in winter wheat. Crop Protection. 4, pp. 298-312.

Pheromones in the management of beneficial insects

A - Papers appearing in refereed journals

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

Pheromones in the management of beneficial insects

A - Papers appearing in refereed journals

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

Reservoirs for Aphidius ervi Haliday (Hymenoptera: Aphidiidae), a polyphagous parasitoid of cereal aphids (Hemiptera: Aphididae)

A - Papers appearing in refereed journals

Cameron, P. J., Powell, W. and Loxdale, H. D. 1984. Reservoirs for Aphidius ervi Haliday (Hymenoptera: Aphidiidae), a polyphagous parasitoid of cereal aphids (Hemiptera: Aphididae). Bulletin of Entomological Research. 74 (4), pp. 647-656. https://doi.org/10.1017/S0007485300014024

The role of parasitoids in limiting cereal aphid populations

B - Book chapters etc edited externally

Powell, W. 1983. The role of parasitoids in limiting cereal aphid populations. in: Cavalloro, R. (ed.) Rotterdam, Netherlands A.A. Balkema. pp. 50-56

The reactions of two cereal aphid parasitoids, aphidius-uzbekistanicus and aphidius-ervi to host aphids and their food-plants

A - Papers appearing in refereed journals

Powell, W. and Zhang, Z. L. 1983. The reactions of two cereal aphid parasitoids, aphidius-uzbekistanicus and aphidius-ervi to host aphids and their food-plants. Physiological Entomology. 8 (4), pp. 439-443. https://doi.org/10.1111/j.1365-3032.1983.tb00378.x

The role of parasitoids in limiting cereal aphid populations

A - Papers appearing in refereed journals

Powell, W. 1982. The role of parasitoids in limiting cereal aphid populations. Aphid antagonists. Proceedings of a meeting of the EC Experts' Group, Portici, Italy, 23-24 November 1982. pp. 50-56.

The identification of hymenopterous parasitoids attacking cereal aphids in Britain

A - Papers appearing in refereed journals

Powell, W. 1982. The identification of hymenopterous parasitoids attacking cereal aphids in Britain. Systematic Entomology. 7 (4), pp. 465-473. https://doi.org/10.1111/j.1365-3113.1982.tb00457.x

Towards integrated control of cereal aphids

A - Papers appearing in refereed journals

Powell, W., Dean, G. J., Dewar, A. M. and Wilding, N. 1981. Towards integrated control of cereal aphids. Proceedings of the British Insecticide and Fungicide Conference. 11.

The relative abundance of the hymenopterous parasites attacking metopolophium-dirhodum (walker) and sitobion-avenae (f) (hemiptera, aphididae) on cereals during 1973-79 in southern England

A - Papers appearing in refereed journals

Dean, G. J., Jones, M. G. and Powell, W. 1981. The relative abundance of the hymenopterous parasites attacking metopolophium-dirhodum (walker) and sitobion-avenae (f) (hemiptera, aphididae) on cereals during 1973-79 in southern England. Bulletin of Entomological Research. 71 (2), pp. 307-315. https://doi.org/10.1017/s0007485300008336

Toxares deltiger (Haliday) (Hymenoptera: Aphidiidae) parasiting the cereal aphid, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), in southern England: a new host-parasitoid record

A - Papers appearing in refereed journals

Powell, W. 1980. Toxares deltiger (Haliday) (Hymenoptera: Aphidiidae) parasiting the cereal aphid, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), in southern England: a new host-parasitoid record. Bulletin of Entomological Research. 70 (3), pp. 407-409. https://doi.org/10.1017/s0007485300007665