Rebecca Hallett

Professor and Associate Dean (Research and Graduate Studies)
Phone number: 
(519) 824-4120 Ext.54488 Room: ECBL 2240
EC Bovey Building


BSc (Biogeography), Toronto;

MPM, PhD (Entomology) Simon Fraser


Vegetable and field crop pest management, population dynamics of alien and invasive species, chemical ecology of insects, insect-plant interactions, climate change impacts on invasive species.

Meet Prof. Rebecca Hallett

Head shot of Rebecca with a play button overlaid.

Rebecca Hallett is a professor in our School of Environmental Sciences. Her research focuses on the management of pest species in agricultural systems.

Check our Rebecca's 60 second snapshot video here. 


  • Renkema, J.M., Wright, D., Buitenhuis, R., and R.H. Hallett. 2016. Plant essential oils and potassium metabisulfite as repellents for Drosophila suzukii (Diptera: Drosophilidae). Scientific Reports, 6: 21432. doi:10.1038/srep21432 SREP-15-31122, published online 19 February 2016.

  • Goudis, L.A., Trueman, C.L., Baute, T.S., Hallett, R.H. and C.L. Gillard.  2016. Insecticide efficacy and timing for control of Western bean cutworm in dry and snap beans. Journal of Economic Entomology, 109:188–194. DOI:, Advance Access version published online: 17 October 2015.

  • Saad, K.A., Roff, M.N.M., Hallett, R.H., and A.B. Idris. 2015. Aphid-induced defences in chilli affect preferences of the whitefly, Bemisia tabaci(Hemiptera: Aleyrodidae). Scientific Reports, 5: 13697. DOI:10.1038/srep13697. Published online: 3 September 2015.

  • Renkema, J., Telfer, Z., Gariepy, T., and Hallett, R.H. 2015. Dalotia coriaria as a control agent for Drosophila suzukii: functional responses, molecular diagnostics and reduced fruit infestation. Biological Control, 89:1-10. DOI:10.1016/j.biocontrol.2015.04.024.

  • Evans, B. G., Jordan, K.S., Brownbridge, M. and R.H. Hallett. 2015. Effect of temperature and host life stage on efficacy of soil entomopathogens against the swede midge (Diptera: Cecidomyiidae). Advance Access version published online 18 March 2015. Journal of Economic Entomology, 108:473-483. DOI: 10.1093/jee/tov050.

  • Des Marteaux L.E., Habash, M.B., Schmidt, J.M. and R. H. Hallett. 2015. Patterns of diapause frequency and emergence in swede midges of southern Ontario.  Article first published online: 28 Aug 2014. DOI: 10.1111/afe.12083. Agricultural & Forest Entomology,  17: 77–89.

  • Renkema, J.M., Buitenhuis, R., and R.H. Hallett. 2014. Optimizing trap design and trapping protocols for Drosophila suzukii (Diptera: Drosophilidae). Journal of Economic Entomology, 107: 2107-2118.

  • Frewin, A.J., Schaafsma, A.W., and R.H. Hallett. 2014. Susceptibility of Aphelinus certus Yasnosh to neonicotinoid seed treatments used for soybean pest management. Journal of Economic Entomology, 107: 1450-1457. DOI: First published online: 1 August 2014.

  • Berzitis, E., Minigan, J., Hallett, R., and J. Newman. 2014. Climate and host plant availability impact the future distribution of the bean leaf beetle (Cerotoma trifurcata). Global Change Biology, 20: 2778-2792.

  • Brunke, A.J., Bahlai, C.A., Klimaszewski, J., and R.H. Hallett. 2014. Rove beetles (Coleoptera: Staphylinidae) in Ontario soybean agroecosystems: assemblage diversity, composition, seasonality and habitat use. The Canadian Entomologist, 146:652-670/ DOI:

  • Bahlai, C.A., Schaafsma, A.W., Lagos, D., Voegtlin, D., Smith, J., Welsman, J., Xue, Y., Difonzo, C. and R.H. Hallett.  2014. Factors associated with winged forms of soybean aphid and an examination of North American spatial dynamics of this species in the context of migratory behavior. Agricultural & Forest Entomology, 16: 240-250. [DOI: 10.1111/afe.12051].

  • Renkema, J.M., Miller, M., Fraser, H., Légaré, J.-P., and R.H. Hallett. 2014. First record of Zaprionus indianus Gupta (Diptera: Drosophilidae) from commercial fruit fields in Ontario and Québec, Canada. Journal of the Entomological Society of Ontario, 44:125-130.

  • Hallett, R. H.,  Bahlai, C. A., Xue, Y. and A. W. Schaafsma. 2014. Incorporating natural enemy units into a dynamic action threshold for the soybean aphid, Aphis glycines (Homoptera: Aphididae). First published online, 11 Nov 2013. DOI 10.1002/ps.3674. Pest Management Science, 70: 879–888.

  • Bahlai, C.A., R.M. Weiss, and R.H. Hallett. 2013. A mechanistic model for a tritrophic interaction involving soybean aphid, its host plants, and multiple natural enemies. Ecological Modelling, 254: 54-70.

  • Hallett, R.H., and M.K. Sears. 2013. Pheromone-based action thresholds for control of the swede midge, Contarinia nasturtii (Diptera: Cecidomyiidae), and residual insecticide efficacy in cole crops. Journal of Economic Entomology, 106(1):267-276.

  • Onyilagha, J.C., Gruber, M.Y., Hallett, R.H., Holowachuk, J., Buckner, A. and J.J. Soroka. 2012.  Constitutive flavonoids deter flea beetle insect feeding in Camelina sativa L., Biochemical Systematics and Ecology, 42:128-133.

  • Glemser, E.J., l. Dowling, D. Inglis, G.J. Pickering, W. McFadden-Smith, M.K. Sears and R.H. Hallett. 2012. A novel method for controlling multicolored Asian lady beetle (Coleoptera: Coccinellidae) in vineyards. Environmental Entomology, 41(5):1169-1176.

  • Des Marteaux L.E., M.B. Habash, J.M. Schmidt, and R. H. Hallett. 2012. A method for induction and quantification of diapause entry in swede midge (Diptera: Cecidomyiidae). The Canadian Entomologist, 144: 834-842.

  • Xue, Y.,  C. A. Bahlai, A. Frewin, C. M. McCreary, L. E.  Des Marteaux, A. W. Schaafsma and R. H. Hallett. 2012. Intraguild predation of the aphid parasitoid Aphelinus certus by Coccinella septempunctata and Harmonia axyridis. BioControl, 57:627-634. DOI 10.1007/s10526-012-9439-1.

  • Brunke, A.J., O’Keefe, L., Bahlai, C.A., Sears, M.K. and R.H. Hallett. 2012. Guilty by association: an evaluation of millipedes as pests of carrot and sweet potato. (EarlyView online publication, 17 Feb 2012. doi: 10.1111/j.1439-0418.2012.01708.x). Journal of Applied Entomology, 136: 772-780.

  • Frewin, A.J., Schaafsma, A.W. and R.H. Hallett. 2012. Susceptibility of Aphelinus certus to foliar-applied insecticides currently or potentially registered for soybean aphid control. (Early View article published online 18 July 2011, DOI: 10.1002/ps.2245). Pest Manag Sci, 68: 202–208.

  • Pickering, G., Glemser, E. Hallett, R.H., Inglis, D., McFadden-Smith, W., and K. Ker. 2011. Good bugs gone bad: Coccinellidae, sustainability and wine. In: C.A. Brebbia (ed.) Sustainability Today. WIT Press, Southampton, pp. 239-251. ISBN: 978-1-84564-652-3.

  • Frewin, A. J., Xue, Y., Welsman, J.A., Broadbent, B.,  Schaafsma. A.W. and R. H. Hallett. 2010. Development and parasitism by Aphelinus certus (Hymenoptera: Aphelinidae), a parasitoid of soybean aphid, Aphis glycines (Hemiptera: Aphididae). Environmental Entomology, 39: 1570-1578.

  • Bahlai, C.A., Y. Xue, C. McCreary, A.W. Schaafsma and R.H. Hallett. 2010. Choosing organic pesticides over synthetic pesticides may not effectively mitigate environmental risk in soybeans. PLoS ONE, 5(6): e11250.

  • Bahlai, C.A., S. Sikkema, R.H. Hallett, J.A. Newman and A.W. Schaafsma. 2010. Modeling distribution and abundance of soybean aphid in soybean fields using measurements from the surrounding landscape. Environmental Entomology, 39: 50-56.

  • Hallett, R.H., M. Chen, M.K. Sears, and A.M. Shelton. 2009.  Field efficacy of insecticides for control of the swede midge (Diptera: Cecidomyiidae) on cole crops. Journal of Economic Entomology, 102: 2241-2254.

  • McKee, F., Levac, J., and R.H. Hallett. 2009. Effects of foliar surfactants on host plant selection behavior of Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae). Environmental Entomology, 38: 1387-1394.

  • Brunke, A.J., Bahlai, C.A., Sears, M.K. and R.H. Hallett. Generalist predators (Coleoptera: Carabidae, Staphylinidae) associated with millipede populations in sweet potato and carrot fields, and implications for millipede management. Environmental Entomology, 38: 1106-1116.

  • Xue, Y., Bahlai, C.A., Frewin, A., Sears, M.K., Schaafsma, A.W. and R.H. Hallett. 2009. Predation by Coccinella septempunctata and Harmonia axyridis (Coleoptera: Coccinellidae) on Aphis glycines (Homoptera: Aphididae). Environmental Entomology, 38: 708-714.

  • Hallett, R.H., Goodfellow, S.A., Weiss, R.M. and O. Olfert. 2009. MidgEmerge, a new predictive tool, indicates the presence of multiple emergence phenotypes of the overwintered generation of swede midge. Entomologia Experimentalis et Applicata, 130:81-97.


  • G.P. McRostie Faculty Award (for outstanding advising and mentoring), OAC Alumni Foundation. September 21, 2011.

Research Area

integrated pest management, biological control, invasive insect species, insect-plant interactions, insect population dynamics


Area of Research

Plant and Environmental Health