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The Acadian Entomological Society The Acadian Entomological Society 71th Annual Meeting / 71e Réunion annuelle Lord Beaverbrook Hotel, Fredericton, N.B. 15-17 August 2012 / 15-17 août 2012 Table of content / Table des matières Table of content / Table des matières .............................................................. 2 Tentative schedule / Horaire provisoire ............................................................ 3 Wednesday, August 15 / Mercredi 15 août .................................................... 3 Thursday, August 16 / Jeudi 16 août ............................................................ 3 Session I: President’s Prize session (Agricultural insects) ............................ 3 Session II: President’s Prize session (Forest insects) ................................... 3 Session III: Submitted talks ...................................................................... 4 Session IV: Submitted talks ....................................................................... 4 Friday, August 17 / Vendredi 17 août ............................................................ 5 Oral presentation abstracts / Résumés des présentations orales ........................ 6 Poster presentation abstracts / Résumés des présentations par poster ............. 13 …/2 Tentative schedule / Horaire provisoire Wednesday, August 15 / Mercredi 15 août 18:00-19:00 Registration 19:00- AES Mixer Thursday, August 16 / Jeudi 16 août 8:00-8:30 Registration 8:30-8:45 Opening talks Session I: President’s Prize session (Agricultural insects) 8:45-9:00 Gene regulations in green peach aphid during chemical hormesis Ayyanath, Murali-Mohan, Cynthia Scott-Dupree, Chris Cutler 9:00-9:15 Consumption of weed seeds by Harpalus rufipes, a common beetle in lowbush blueberry in Atlantic Canada Chahil, G.S., G.C. Cutler 9:15-9:30 Ecology of plant and leafhoppers in species-rich subalpine meadows Gandiaga, Franck, Jean-Yves Humbert 9:30-9:45 Chemical Ecology of Female Blueberry Spanworm, Itame argillacearia, (Lepidoptera: Geometridae) De Silva, E.C.A., P. J. Silk, N.K. Hillier, G.C. Cutler 9:45-11:00 Break and Poster session Session II: President’s Prize session (Forest insects) 11:00-11:15 Pre- and post-alighting preference for stressed trees in an exotic wood-borer Flaherty, Leah, Dan Quiring, Deepa Pureswaran, Jon Sweeney 11:15-11:30 Resistance of balsam fir to balsam twig aphid and balsam gall midge Fraser, Sara 11:30-11:45 Olfactory physiology of the brown spruce longhorn beetle (BSLB), Tetropium fuscum (Fabr.) (Coleoptera: Cerambycidae) MacKay, Colin, Kirk Hillier, Jon Sweeney …/3 11:45-13:00 Lunch break Session III: Submitted talks 13:00-13h15 Larval diet prior to and following virus ingestion influences the efficacy of two nucleopolyhedroviruses in whitemarked tussock moth (Orgyia leucostigma) caterpillars Brodersen, Garrett, Rob Johns, Renée Lapointe, David Thumbi, Graham Thurston, Christopher Lucarotti, and Dan Quiring 13:15-13:30 Recent advances in monitoring techniques for the balsam gall midge, Paradiplosis tumifex, in Christmas tree stands Carleton, R. Drew, Peter J.Silk, Eldon S. Eveleigh, Stephen B. Heard, Chris Dickie 13:30-13:45 Ontogeny and stand condition influence the dispersal strategy of a specialist budworm caterpillar Johns, R.C., E.S. Eveleigh, P. McCarthy 13:45-14:00 Deciphering the semiochemistry of the balsam fir sawfly, Neodiprion Abietis LeClair, Gaetan, Peter Silk, Peter Mayo, Eldon Eveleigh, Roger Graves 14:00-14:15 Do native endophytic fungi defend white spruce against the eastern spruce budworm? Quiring, Dan, Sara Fraser, Leah Flaherty, David Miller, Andrew McCartney and Greg Adams 14:15-14:30 The Chemical Ecology of the Emerald Ash Borer Agrilus planipennis (Coleleoptera: Buprestidae): an update Silk, Peter, Krista Ryall 14:30-15:00 Break and Poster session Session IV: Submitted talks 15:00-15h15 Development of the Pheromone Component (3Z)- Dodecen-12-olide as a Lure Additive for the Trapping of Emerald Ash Borer: A Chemist's Perspective Mayo, Peter 15:15-15:30 The impact of the European Fire Ant (Myrmica rubra) on ground dwelling invertebrates and arboreal insects Hicks, Barry …/4 15:30-15:45 In Search of the Saarlac: Olfactory physiology of coeloconic sensilla in Manduca sexta Hillier, N.K., Olsson, S.B., Grosse-Wilde, E., Reinecke, A., Hansson, B.S. 15:45-16:00 Disentangling the effects of structural and compositional heterogeneity of habitat on animal community assembly Moreau, Gaétan, Charles Comeau, Jean-Pierre Privé 16:00-16:15 Blueberry maggot (Rhagoletis mendax Curran) fly movement in and around lowbush blueberry fields Renkema, Justin 18:00- Banquet Friday, August 17 / Vendredi 17 août 9:00- AGM …/5 Oral presentation abstracts / Résumés des présentations orales Ayyanath, Murali-Mohan (1, 2), Cynthia Scott-Dupree (2), Chris Cutler (1) (1) Faculty of Agriculture, Dalhousie University, Truro, NS, Canada; (2) School of Environmental Sciences, University of Guelph, Guelph, ON, Canada ORAL PRESIDENT'S PRIZE Gene regulations in green peach aphid during chemical hormesis Chemical hormesis is a biphasic toxicological response displaying low-dose stimulation and high-dose inhibition. When green peach aphids were exposed to sublethal concentrations of imidacloprid, we found up to 4-fold down-regulation of OSD, TOL, Hsp60 and FPPS 1 genes in parental generation adults (G0) and up to 5-fold up- regulation of OSD and TOL genes in G1, as determined by real-time PCR. In G1 adults, ANT, Hsp60 and FPPS 1 down-regulated up to 5-fold suggesting adaptation to the nd stressor. Analysis of genes of G0 and G1 2 instars suggests initial disruption followed by overcompensation hormesis. Brodersen, Garrett (1), Rob Johns (2), Renée Lapointe (3), David Thumbi (3), Graham Thurston (2), Christopher Lucarotti (2), and Dan Quiring (4) (1) Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, NB, Canada E3B 5A3; (2) Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, Fredericton, NB E3G 5P7; (3) Forest Protection Limited, Fredericton, New Brunswick; (4) Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, NB, Canada E3B 5A3 ORAL SUBMITTED Larval diet prior to and following virus ingestion influences the efficacy of two nucleopolyhedroviruses in whitemarked tussock moth (Orgyia leucostigma) caterpillars Food quality can influence the performance of immature insects and their interactions with pathogens. Laboratory studies using nucleopolyhedroviruses derived from whitemarked tussock moths (WMTM) (Orgyia leucostigma) and Douglas fir tussock moths found that WMTM caterpillars fed high quality food (i.e. Bell diet) prior to virus ingestion showed lower mortality rates than those fed lower quality food (i.e. birch foliage). In field studies, caterpillars showed higher mortality rates when fed low quality foliage (i.e. balsam fir) than they did when fed high quality foliage (i.e. birch), following virus ingestion. We suggest that well-nourished insects are more resistant to viral infection than malnourished insects, though the mechanism remains unclear. …/6 Carleton, R. Drew (1), Peter J.Silk (1), Eldon S. Eveleigh (1), Stephen B. Heard (2), Chris Dickie (3) (1) Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, Fredericton, NB, Canada E3B 5P7; (2) University of New Brunswick, Fredericton, NB; (3) InFOR, Fredericton, New Brunswick ORAL SUBMITTED Recent advances in monitoring techniques for the balsam gall midge, Paradiplosis tumifex, in Christmas tree stands Balsam gall midge, Paradiplosis tumifex Gagne (Diptera: Cecidomyiidae) is an economically important pest in the Christmas tree industry. Current research targets the identification of several key factors in the midge life-cycle (i.e. emergence) with the goal to improve mitigation techniques. Results and implications are discussed. Chahil, G.S. (1), G.C. Cutler (1) (1) Faculty of Agriculture, Dalhousie University, Truro, NS, Canada ORAL PRESIDENT'S PRIZE Consumption of weed seeds by Harpalus rufipes, a common beetle in lowbush blueberry in Atlantic Canada Weeds are a major pest problem of wild blueberry. Granivorous ground beetles may consume weed seeds, contributing to pest control. In the laboratory, Harpalus rufipes, a common ground beetle in lowbush blueberry fields, consumed 30 and 17 seeds of red sorrel and hairy fescue (weeds) respectively in 4 days. When given a choice, H. rufipes consumed two times more red sorrel seeds than hairy fescue. Additional field experiments will clarify the potential of H. rufipes for weed biocontrol in lowbush blueberry. De Silva, E.C.A. (1), P. J. Silk (2), N.K. Hillier (3), G.C. Cutler (1) (1) Department of Environmental Sciences, Nova Scotia Agricultural College, P.O. 550, Truro, NS, B2N 5E3, Canada; (2) Natural Resources Canada, Canadian Forest Service- Atlantic Forestry Centre, 1350- Regent Street., Fredericton, NB, E3B 5P7, Canada; (3) Department of Biology, Acadia University, 33 Westwood Ave., Wolfville, NS, B4P 2R6, Canada. ORAL PRESIDENT'S PRIZE Chemical Ecology of Female Blueberry Spanworm, Itame argillacearia, (Lepidoptera: Geometridae) Blueberry spanworm, Itame argillacearia, is an important defoliator of wild blueberry. The sex pheromone gland components were isolated from virgin female moths reared in the laboratory. GC-MS and GC-EAD analysis of pheromone gland components, in combination with field trapping studies, identified (3R, 4S)-epoxy- (Z,Z)-6,9-17:H and …/7 (Z,Z,Z)-3,6,9-17:H as the female produced sex pheromone. Field trapping
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