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Increasing Concerns about Corn Earworm Susceptibility to Pyrethroids in the Midwestern USA

W. D. Hutchison and R. A. Weinzierl

July 2007


Because of growing concern about inconsistent corn earworm (CEW control, particularly in Midwest sweet corn, and the documented migratory behavior of CEW adults, a symposium was organized for the Annual Meeting of the North Central Branch of the Entomological Society of America in 2006. The purpose of the symposium was to provide a comprehensive overview of the status and impact of H. zea resistance to synthetic pyrethroids, with a focus on the midwestern, northeastern, and southern US.


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