Insect Alert For

Corn Earworm

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

An active yet progressive weather pattern is expected over the next several days with at least two cold fronts forecast to impact the corn-growing region. The first front is already passing through the northern Plains and will continue on southeast over the next 24-36 hours and interact with remnants of Harvey currently in the Ohio River Valley. Low corn earworm migration risks forecast just to the southeast of the front but northwest of Harvey’s wind field, or from northern Kansas and far northwest Missouri northeast into far eastern South Dakota, Minnesota, western Wisconsin, and then on southwest into central Iowa. The next front should begin dropping south into the corn-growing region by early next week. Low risks are predicted initially west of Lake Michigan Sunday night into Monday morning, and then focus mainly across the southern Great Lakes region Monday night into Tuesday. Processing and fresh-market growers should continue to monitor traps and scout fields especially where fresh silks are still present as additional mainly isolated flights will be possible over the next several days.