We surveyed a population of emerald ash borer (EAB), Agrilus planipennis Fairmaire (Coleoptera: Buprestidae) for seasonal abundance of natural enemies in southeastern Michigan between August 2002- June 2003. Infested ash trees were periodically sampled in the field and dissected to remove live and dead EAB; live larvae were placed on artificial diet for rearing of parasitoids and dead EAB were cultured for entomopathogenic fungi. We also placed infested logs in cardboard tubes and collected EAB and natural enemies emerging from the logs. More than 10 species of larval-pupal parasitoids were recovered, including chalcids, ichnemonids, braconids, several dipterans, including one tachnid; larval and pupal predators included a cucujid and at least one species of clerid. Isolates of entomopathogenic fungi were isolated for field EAB larvae, pupae, and adults including Beauveria bassiana, Metarhizium anisopliae, Verticillium lecanii, Paecilomyces farinosus, P. fumosoroseus. A survey for EAB egg natural enemies is planned for summer 2003.
Species 1: Coleoptera Buprestidae Agrilus planipennis (emerald ash borer)
Keywords: invasive species, natural enemies
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