Insect Alert For

Corn Earworm

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Alert Details

Corn earworm migration risks are in the Low category on a nightly basis into next weekend as a very persistent pattern featuring high pressure in the eastern United States and various low pressure centers in the Plains or upper Midwest remains in place. In between these two pressure centers will be a corridor of southerly winds which may lead to some isolated moth flights into growing areas especially near and west of the Great Lakes. Low risks are predicted tonight into tomorrow from Kansas and Missouri north as far as southern Minnesota and Wisconsin with risks staying mainly west of Lake Michigan. Low risks focus mainly south of I-90 and west of I-35 tomorrow night into Thursday, with Low risks then expanding back east by late week and into next weekend, with fields as far east as southwest lower Michigan and Indiana potentially seeing some moth flights. There have already been some flights into the corn-growing region in the past week or so, so growers with crops at susceptible stages to damage should continue to monitor traps and scout fields.