Insect Alert For

Corn Earworm

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

Corn earworm migration possibilities are rather abundant in the next five days especially west of Lake Michigan and I-57 in Illinois as an increasingly southwesterly driven weather pattern begins to take over the corn-growing region. Growers located across the western two-thirds of the Midwest and Plains are especially encouraged to prepare and monitor those crops that are at susceptible stages to damage as new moth flights are predicted across a large portion of the region in the next week. Moderate risks are in the forecast in some region of the corn-growing region in all of the next five days. Low pressure is predicted to remain largely over the Plains and eventually western portions of the upper Midwest through early next week while high pressure builds into the southeastern United States. Such a weather setup will result in south to southwest winds across the western two-thirds of the Midwest and may result in at least scattered moth flights into the corn-growing region. Moderate risks are initially in place tonight into tomorrow morning across Kansas, southeast Nebraska, far southeast South Dakota, much of Iowa, and a good portion of central and northern Missouri. The Moderate risk area extends into Illinois tomorrow night into Friday morning, and eventually spreads north into Minnesota and Wisconsin by later in the weekend and early next week. Low risks do eventually spread into lower Michigan and Indiana but conditions are not expected to be as favorable for more than isolated flights into this region, at least during this forecast period.