Insect Alert For

Corn Earworm

Risk Level:
Low Risk
Affected Area:
Full page
Alert Details

An active, progressive northwest-flow dominated weather pattern is expected across the corn-growing region for the foreseeable future. As a result, any opportunities for corn earworm migration will be rather brief and tied to southerly flow east of cold front passages. Low risks are predicted tonight into tomorrow mainly east of I-57 in eastern Illinois, Indiana, Ohio, lower Michigan, and far northern Kentucky ahead of a cold front. Low risks then focus back across the northern corn-growing region, mainly west of a Green Bay, Wisconsin to Quincy, Illinois line tomorrow night into Thursday ahead of the next front. Finally, a stronger cold front this weekend and early next week looks to send a pretty good chunk of cold air south from Canada, and Low migration risks are found east of the cold front west of Lake Michigan by Saturday night into Sunday. Fresh market and processing growers are encouraged to continue monitoring traps and scouting fields that are at susceptible stages to damage from corn earworm until the crop is harvested.