Insect Alert For

Corn Earworm

Risk Level:
No Risk
Affected Area:
No risk Full page
Alert Details

A low risk of corn earworm migration is predicted across the southern Midwest especially for Thursday morning. A strong low pressure system is predicted to track into the Plains and eventually upper Midwest by mid to late week, and high pressure is expected to move into the eastern United States. Southerly winds between these two pressure centers are predicted across a good portion of the corn-growing region especially along and south of I-90 by Wednesday and Thursday, but little in the way of emerged corn is present north of I-70, so any migration risks are confined to the southern Midwest from eastern Kansas into southern and central Missouri as well as southern Illinois where at least scattered corn fields have emerged and are further along than further north. A low risk is being issued primarily to provide an awareness that a favorable weather pattern for at least isolated corn earworm migration is possible into an area where some corn has emerged but that there is not necessarily a risk to crops at this point as we are still very early in the growing season.