Insect Alert For

Corn Earworm

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

As a cold front continues pushing southeast through the corn-growing region today into tonight, any south to southwest winds to the east of the front will focus primarily over the eastern Midwest and southern Great Lakes region. Scattered precipitation may occur near this front so insect drop zones may occur but primarily on an isolated basis due to weak wind speeds. As a result, only Low risks are predicted mainly east of I-57. After a break in the risk for Saturday into early Sunday, Low risks return to the Plains Sunday night into Monday as the next low pressure system develops in predominant northwest to southeast flow. Southerly winds will increase ahead of this front and fields south of I-90 and west of US 71, or from Kansas north into southern South Dakota will be at risk. A more focused region of southerly winds along with expected precipitation is predicted for Monday night into Tuesday and a Moderate migration risk is in place for portions of eastern Kansas, southeast Nebraska, southern Iowa, far western Illinois, and much of Missouri by that time. Low risks extend north into Minnesota and Wisconsin that same night, and also east into the southern Great Lakes region and eastern Midwest on Tuesday night into Wednesday. Growers all across the Midwest should also be on the lookout for increasing moth populations as the second generation flight should be starting soon in many areas.