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    The introduction of the emerald ash borer (EAB), Agrilis planipennis (Coleoptera: Buprestidae), into the Midwest from Asia has had a devastating affect on ash (Fraxinus spp.). As the emerald ash borer's ability to spread became better understood and its distribution in the Midwest increased, biocontrol became an increasingly important option. Prior to the identification of emerald ash borer in Michigan, Spathius agrili Yang (Hymenoptera: Braconidae)was discovered attacking EAB in its native range in China. Subsequent laboratory host specificity testing with North American woodborers and olfactory testing of various tree volatiles, including ash, indicate S. agrili is not predicted to have a significant impact on native North American fauna.

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    Strazanac, John S.; Gould, Juli R.; Haack, Robert A.; Fraser, Ivich. 2008. Field host range testing of Spathius agrili, a parasitoid of emerald ash borer: evaluating nontarget impacts. In: Mastro, Victor; Lance, David; Reardon, Richard; Parra, Gregory, comps. Emerald ash borer research and development meeting; 2007 October 23-24; Pittsburgh, PA. FHTET 2008-07. Morgantown, WV: U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 61-62.

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