Insect Alert For

Corn Earworm

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

A continued active and progressive weather pattern is predicted to continue through the weekend and right into next week. For the purposes of corn earworm migration, Low risks will continue in the forecast at the start of the period and also as we move into next week. A frontal boundary will push through the eastern corn-growing region in the next day or so. Ahead, or to the east, of the front, southwest winds may lead to isolated moth flights especially into the southern Great Lakes and eastern corn-growing region tonight into tomorrow morning. Precipitation is also likely to be rather common in this same area so the overall risk may be rather low. A brief break in migration risks is predicted over the weekend as high pressure moves quickly from west to east through the corn-growing region. Low risks return mainly west of I-55 and Lake Michigan by early next week as southerly winds once again increase ahead of the next low pressure system and cold front. Late-planting processing and fresh-market growers should continue to monitor traps and scout fields as moth activity may still be ongoing especially in the upper Midwest and Great Lakes region.