Insect Alert For

Corn Earworm

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

A fairly strong cold front is expected to work its way southeast through a good portion of the corn-growing region over the next 24-36 hours. Southwest winds east of the front are likely to be gusty, and may pose an isolated corn earworm migration risk later this evening and into tonight from Kansas, Missouri, southern Illinois, and western Kentucky as far north as Minnesota, Wisconsin, and southwest lower Michigan. Despite the gusty winds, the short duration of southerly winds precludes any higher of a risk at this time. By the weekend, a dome of high pressure and heat is expected to build into at least a portion of the corn-growing region on increasing southerly winds. Low migration risks are back in the forecast initially west of the Mississippi River by Friday night into Saturday before spreading east throughout the weekend and into early next week. There is still some uncertainty to the forecast especially late in the weekend and early next week, mainly in regards to what a weak cool front may do to the overall setup so we will continue to monitor.