Sunday, November 16, 2008 - 8:41 AM
0102

Development of methods for creation of life-table cohorts for evaluation of natural enemy impacts on emerald ash borer populations

Jian Duan, jian.duan@ars.usda.gov, US Department of Agriculture, Beneficial Insects Introduction Research Unit, 501 South Chapel Street, Newark, DE, Leah S. Bauer, lbauer@fs.fed.us, USDA Forest Service, Northern Research Station, East Lansing, MI, Juli Gould, Juli.R.Gould@aphis.usda.gov, USDA-APHIS-PPQ-CPHST, Otis Pest Survey, Detection, and Exclusion Laboratory, Building 1398, Otis ANGB, MA, and Roy Van Driesche, vandries@nre.umass.edu, University of Massachusetts, Entomology, 102 Fernald Hall, 270 Stockbridge Road, Amherst, MA.

Life tables may be used as a quantitative tool to assess the impact of natural enemies on pests. One of the critical challenges in constructing life tables for concealed insect pests such as emerald ash borer is to create or establish cohorts that can be used to quantify the contemporary contributions of various mortality factors, including insect parasitoids. The present study investigates and compares techniques to create egg and larval cohorts of emerald ash borer for measuring the impact of several introduced egg and larval parasitoids.


Species 1: Coleoptera Buprestidae Agrilus Planipennis (emerald ash borer, jewel beetle)
Species 2: Hymenoptera Braconidae Spathius agrili
Species 3: Hymenoptera Encyrtidae Oobius agrili

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