Insect Alert For

Corn Earworm

Risk Level:
No Risk
Affected Area:
No risk Full page
Alert Details

An active weather pattern across the corn-growing region may lead to some isolated corn earworm moth flights especially over the weekend and into very early next week. A low pressure system will continue to organize in the western Plains and then move northeast through the upper Midwest and eventually into Canada. Meanwhile, a cold front will trail to the south of the low pressure center. To the east of the cold front, scattered showers and thunderstorms will be common as will south to southwest winds. Some isolated corn earworm moth flights may occur especially in Kansas into western Missouri tomorrow night into Saturday morning, and then across a larger portion of the corn-growing region from Kansas and Nebraska into Iowa, Missouri, and Illinois on Saturday night into Sunday morning. As the cold front moves east by Sunday into Sunday night, the risk shifts east with it and a Low migration risk is predicted generally east of I-55 in Illinois into the far southern Great Lakes region and eastern corn-growing region. Growers should be advised that while crops are not at susceptible stages to damage, some of these early-season, first generation moth flights can have a bearing on what moth counts and activity will be later in the growing season. As a result, a close eye on any new migrants now may be important to note for later this growing season.