Insect Alert For

Corn Earworm

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

A cold front will continue to push southeast through the corn-growing region over the next 24-48 hours. Ahead of the front, south to southwest winds along with scattered to widespread areas of precipitation will persist. Corn earworm moth flight risks will be greatest across eastern Iowa, southern Wisconsin, and northern Illinois tonight into tomorrow morning where a Moderate risk is in place. Low risks extend into lower Michigan, northwest Ohio, and northern/central Indiana, as well. Low risks are then in the forecast tomorrow night into Saturday morning mainly east of I-55 from central Illinois east into Indiana, Ohio, lower Michigan, and southern Ontario, Canada. Wind flow is predicted to be less by tomorrow night but the source region of the winds is expected to be over active corn earworm moth populations in the mid-south, so there could still be some flights into the eastern corn-growing region over the next 24-48 hours. No risk is predicted after midday Saturday as northwest flow should dominate the weather for the weekend and into early next week.