Insect Alert For

Corn Earworm

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

A cold front will begin moving southeast across the northern and western corn-growing regions today into tomorrow. Southwest winds and continued very hot and humid conditions will continue along/south of the front. These winds may pose a scattered corn earworm moth flight migration in the more favored areas from eastern Nebraska into Iowa, southeast Minnesota, southern Wisconsin, northern Illinois, northern Indiana, and southwest lower Michigan where a Moderate migration risk is predicted until midday Thursday. Low risks extend as far east as the I-75 corridor in southeast lower Michigan, western Ohio, and central Kentucky. This front is expected to continue advancing southeast, and eventually winds across much of the corn-growing region will turn westerly and northwesterly, essentially ending any migration risk. Growers with crops at susceptible stages to corn earworm damage, especially fresh market and processing growers, should continue scouting and trapping efforts as new moths may appear within the next several days in some areas.