Insect Alert For

Corn Earworm

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

An active weather pattern is predicted to remain in place especially across the central and southern portion of the corn-growing region in the next five days. As a result, Low corn earworm migration risks are in place on a nightly basis as southerly winds to the south of a warm front may result in isolated moth flights into the corn-growing region. Overnight tonight, the risk is focused mainly across Kansas, southern Nebraska, and southwest Missouri as a warm front begins to lift to the north and showers/thunderstorms develop along the boundary. Low risks then expand north and east tomorrow night into Saturday morning, and extend from southern South Dakota into Nebraska, Kansas, Iowa, Missouri, and far western Illinois. The warm front is predicted to stay largely in place this weekend before beginning to shift south as a cold front early next week. Low migration risks remain in place across the central Plains and as far east as into Indiana and Kentucky by late in the weekend. Growers should be on the alert for the possibility of new moth flights in the coming week, especially where corn is silking and ears developing. The possibility still exists for increased risks by late in the weekend or early next week, especially southerly winds can originate from more active source regions across the mid-south/Mississippi delta region.