Insect Alert For

Corn Earworm

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Alert Details

A more active weather pattern is expected across the corn-growing region over the next several days. A cold front will work its way into the Plains and western corn-growing region over the next 24 hours, and will divide southwest winds to its east from rather gusty north winds to its west. Some isolated corn earworm moth flights will be possible in the southwest wind regime tonight into tomorrow mainly west of Lake Michigan and the I-57 corridor. Low risks then expand east tomorrow night into Saturday and reach all the way into lower Michigan and western Ohio as high pressure slowly moves off into the eastern United States. A wave of low pressure is expected to develop and move north along the cold front by later Saturday and Sunday, and a continued risk of mainly isolated moth flights continues across the eastern corn-growing region during that time before the cold front departs to the east early next week. Growers with crops at susceptible stages to corn earworm damage, especially processors and fresh market growers, should continue scouting and trapping efforts as both new moths may still be arriving and larvae may also be present especially given fewer and fewer host fields now available later in the growing season.