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Entomological Society of Alberta 57th Annual Meeting Lakeland College, Vermilion November 5th – 7th, 2009 PROGRAM Entomological Society of Alberta Executive 2009 President Brian Van Hezewijk Vice‐President Greg Pohl Past President Rose De Clerck‐Floate Secretary Ken Fry Treasurer Kimberly Rondeau Webmaster Alec McClay Northern Region Director Gerald Hilchie Central Region Director Mary Reid Southern Region Director Fran Leggett Regional Director to ESC Lloyd Dosdall Proceedings Editor Emily Barnewall Annual Meeting 2009 Local Arrangements Peter Walsh, Michael Crowe Scientific Program Committee Lloyd Dosdall, Alec McClay Registration and Finance Kimberly Rondeau 2 Thursday, November 5 16:30 Executive Meeting (Room 256, Alumni Hall) 18:30 Registration open (Cafeteria, Alumni Hall) 19:00 – 22:00 Reception (Cafeteria, Alumni Hall) All Friday and Saturday sessions will be held in the Main Theatre, Alumni Hall Friday, November 6 08:00 Registration open (Hallway, Alumni Hall) 08:30 Opening and Welcome Brian Van Hezewijk, President, ESA Glenn Charlesworth, President, Lakeland College Josie Van Lent , Associate Dean, Lakeland College SYMPOSIUM: INSECTS IN AGRICULTURE 08:40 Lloyd Dosdall (Moderator) Introduction to the Symposium 08:45 Maya Evenden, R. Gries, M. Aurelian, L.M. Dosdall, G. Judd, C. Miluch, A. Wins‐Purdy Pheromone‐based Management of Agricultural Pests: Current Research and Future Needs 09:05 Alec McClay, A. Gassmann, and V.C. Wolf European Insects as Potential Biological Control Agents for Common Tansy (Tanacetum vulgare) in Canada and the United States 09:25 Ross M. Weiss and Owen Olfert Bio‐climatic Approaches to Assess the Potential Impact of Climate Change on Insect Populations in Agroecosystems 3 09:45 Jeffrey Newton and Heather Proctor Climate Change Effects on Rangeland Soil Microarthropods 10:05 COFFEE 10:35 Héctor A. Cárcamo and Owen Olfert Biodiversity in Agroecosystems: New Developments and Research Needs 10:55 Lloyd Dosdall, H.A. Cárcamo, O. Olfert, S. Meers, S. Hartley, and J. Gavloski Invasions of Insects in Agroecosystems in the Western Canadian Prairies: Case Histories and Patterns 11:15 Short Break 11:30 Lakeland College Student Activity: “Insect Jeopardy” 12:30 LUNCH (on your own) CONTRIBUTED PAPERS SESSION 1 Moderator – Kateryn Rochon 13:30 Mori, B.A., Gries, G., Otani, J., Yoder, C. and Evenden, M.L. Development of a pheromone‐based monitoring tool for the red clover casebearer (Coleophora deauratella) in Alberta 13:45 Aurelian, V.M., Evenden, M.L., and Judd, G.J.R. Semiochemical‐based mass trapping of the apple clearwing moth (Lepidoptera: Sesiidae) 14:00 Vankosky, M.A.,Cárcamo, H.A., Dosdall, L.M. The effects of soil nitrogen, Rhizobium inoculation and insecticide seed coatings on yield loss and nitrogen fixation in field peas under Sitona lineatus attack 14:15 Subramaniam, R., Dosdall, L. M., O’Donovan, J.T., and Harker, K.N. Identifying Agronomic Practices that Conserve and Enhance Natural Enemies of Root Maggots (Delia spp.) (Diptera: Anthomyiidae) in Canola 4 14:30 Tansey, J.A., Dosdall, L.M., and Keddie, A. Host plant glucosinolate profiles and the cabbage seedpod weevil 14:45 Blake, A. J., Dosdall, L. M., Keddie B. A.. The influence of canola nutrition on the oviposition choice and larval development of the cabbage seedpod weevil 15:00 COFFEE AND POSTER VIEWING POSTER PRESENTATIONS Pinzón, J., Spence, J.R. and Langor, D. Diversity Patterns of Spiders in White Spruce Stands Floate, K.D., and Tiberg, K. What happened to the coprophilous insects associated with bison? De Clerck‐Floate, R., Floate, K.D., and Saunders, P. A test of containment efficacy using living insects in a release and recapture study Floate, K.D., and Watson, W. Introduction of exotic dung beetles into Canada to accelerate degradation of cattle dung Olivier, C., Galka, B., and Floate, K.D. Prevalence of Arsenophonus in leafhopper vectors of phytoplasma Waller, J.L. Parasitoid competition? or Can parasitoids distinguish previously parasitized hosts? Xiuhua Wu, Hector Cárcamo, Brian Beres Does Bracon cephi reduce stem mining by wheat stem sawfly? 5 CONTRIBUTED PAPERS SESSION 2 Moderator – Emily Barnewall 15:30 Larson, D.G. and Drozdiak, R. The foraging activity of the leaf cutter ant, Acromyrmex echinator, in dry tropical forest patches in Guanacaste, Costa Rica 15:45 Esch, E.D., Spence, J.R., Langor, D. Mountain pine beetle phenology, survival, and condition in whitebark pine 16:00 Schwarzfeld, M., Sperling, F. Patterns of ichneumonid (Insecta: Hymenoptera) diversity in a boreal forest ecosystem 16:15 Wood, C. M., Spence, J.R., and Langor, D.W. Beetle species of fallen trembling aspen deadwood 16:30 Lee, S.‐I., Langor, D.W., and Spence, J.R. Influence of various retention patches on saproxylic beetles in white spruce stands 16:45 Amanda Van Haga, B. Andrew Keddie, Stephen F. Pernal From Eggs to Riches: The Use of Hen Egg White Lysozyme to Control Chalkbrood Disease in Honey Bee Colonies 18:30 BANQUET (Cafeteria, Alumni Hall) Cocktails at 18:30 Dinner at 19:00 Awards Presentations (Rose De Clerck‐Floate, Chair, Awards Committee): Student Travel Grants, Undergraduate Award in Entomology, F.S. Carr Award 6 Saturday, November 7 CONTRIBUTED PAPERS SESSION 3 Moderator – Meghan Vankosky 08:30 Lysyk, T.J., and Rochon, K. Seasonal Activity of Rocky Mountain Wood Ticks, Dermacentor andersoni, in Southern Alberta 08:45 Janet Sperling, Danny Shpeley, Sarah Leo , Mike Jenkins, Felix Sperling Ixodes scapularis and I. pacificus ticks in Alberta 09:00 Leech, R.E. The Continuing Saga of Introduced Spiders to Alberta 09:15 Barnewall, E.C., De Clerck‐Floate, R. Quarantine assessment of Rhinusa pilosa as a potential biological control agent for Linaria vulgaris 09:30 Van Hezewijk, B.H. and Bourchier, R.S. Halos, Ripples, and Ghosts of Dispersal Past 09:45 Dombroskie, J. J. Quantifying Gestalt: Towards an Interactive Matrix‐based Key to Canadian Lepidopteran Subfamilies 10:00 ENTOMOLOGICAL SOCIETY OF ALBERTA ANNUAL GENERAL MEETING Coffee will be served concurrently with the AGM. 7 ORAL AND POSTER PRESENTATION ABSTRACTS (Alphabetically by presenting author) Semiochemical‐based mass trapping of the apple clearwing moth (Lepidoptera: Sesiidae) Aurelian, V.M.1, Evenden, M.L.1, and Judd, G.J.R. 2. 1Department of Biological Sciences, CW405 Biological Sciences Bldg, University of Alberta, Edmonton, AB, T6G 2E9. 2Agriculture and Agri‐food Canada, Pacific Agri‐food Research Centre, Summerland, BC, V0H 1Z0. Infestations of apple clearwing moth, Synanthedon myopaeformis, a European pest of apples, were recently discovered in several areas of Canada. Cambium‐feeding larvae girdle bark at the rootstock‐scion union, which weakens dwarfing apple trees and reduces their yields. Absence of natural enemies and effective pesticides has resulted in extremely high populations, especially in organic apples in southern B.C. Our goal is to develop a semiochemical‐based mass‐trapping program targeting male and female moths. In this study we compare pheromone‐and kairomone‐based mass trapping at three different trap densities relative to untreated control plots. In kairomone‐baited traps, we use commercial grape juice, known to be highly attractive to both sexes. Mass trapping with grape juice removed large numbers of both males and females. Interference among pheromone traps occurred at very high trap densities (100 traps/ha under high moth densities and 50 traps/ha under lower moth densities). In contrast, no trap interference was detected with juice‐baited traps. A combination of male confusion by ambient levels of pheromone and removal from the population through capture in traps may operate in pheromone‐based mass‐trapping plots. The mechanisms behind the significant decrease in the number of females captured in assessment traps in control plots versus pheromone baited mass trapping plots remain unknown. We predict that high‐capacity traps baited with kairomones that target both sexes may be a good alternative to pesticides for decreasing moth densities in organic orchards. Quarantine assessment of Rhinusa pilosa as a potential biological control agent for Linaria vulgaris Barnewall, E.C.1,2, De Clerck‐Floate, R.1 1 University of Lethbridge, Lethbridge AB 2 Lethbridge Research Centre, Agriculture & Agri‐food Canada, Lethbridge AB Yellow toadflax, Linaria vulgaris, is a non‐native, invasive plant of agricultural and natural areas in Canada. Multiple introductions of this plant to North America are suspected, hence, any insects used for biocontrol of L. vulgaris will be encountering multiple host genotypes upon release. A pre‐release 8 impact assessment of a European weevil, Rhinusa pilosa, was conducted in quarantine using Canada‐wide L. vulgaris populations to help determine the potential efficacy of this candidate biocontrol agent. Impacts were examined by comparing intra‐ and inter‐population plant responses to weevil gall induction and development. Impacts were determined by assessing stem height and growth rate, flower production, and above and below ground biomass. Preliminary analyses show that galled stems were 21% smaller and produced 68% fewer flowers than control stems (F2,39 = 3.54, p = 0.039; F2,39 = 7.10, p < 0.01, respectively). However, above ground biomass was 24% higher in galled plants than in control plants but this difference was not significant (F1,21 = 1.14, p = 0.30). The results from this study will help determine the suitability of R. pilosa to different populations (and potentially different genotypes) of yellow toadflax and select non‐targets