Insect Alert For

Corn Earworm

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

Corn earworm migration risks continue for the next three nights as south to southwest winds remain persistent across portions of the corn-growing region. Low risks are initially in place tonight into Saturday morning for fields in Kansas, Missouri, far southeast Nebraska, Iowa, and Illinois as southwest winds focus into this area after originating in source regions in Oklahoma, northern Texas, and Arkansas. The risk area shifts west Saturday night into Sunday morning as south winds re-focus to the west. Additionally, fields as far north as South Dakota and Minnesota may see some isolated flights occur as a result of the favorable wind pattern despite the early point in the growing season. By Sunday night into Monday morning, as a cold front begins advancing across the Plains into the corn-growing region, the Low risk area shifts to the east. Thereafter, no risk is predicted as north to northwest winds are expected to settle into much of the corn-growing region and should greatly inhibit any potential moth flights by that time.