Insect Alert For

Corn Earworm

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

A progressive, northwest to southeast moving weather pattern is expected to persist across much of the corn-growing region into next week. The result will be limited opportunities for corn earworm migration, but growers should be on the alert for the second generation to begin emerging in some areas within the next week that may cause moth counts to increase despite a lack of predicted migration. As a cold front moves quickly through the Midwest late week into the weekend, Low migration risks associated with weak southerly winds immediately in advance of the front are in place mainly west of a Joplin, Missouri to Milwaukee, Wisconsin line Thursday night into Friday, and then east of I-57 in Illinois Friday night into Saturday morning. A low risk is also in place in a portion of the Plains Sunday night into Monday as low pressure develops east of the Rocky Mountains and southerly winds increase in that area.