Insect Alert For

Corn Earworm

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

Corn earworm migration risks return to the forecast next Monday night into Tuesday morning as south to southwest flow returns initially to the Plains states and portions of the western/northern corn-growing region. An area of low pressure is expected to develop across the central Plains as high pressure from this weekend moves off to the east. Southerly flow and prospects for rainfall increase ahead of this system, so at least isolated moth flights will be possible mainly west of I-35 Monday night and then as far east as western Illinois and southwest Wisconsin by Tuesday night into Wednesday morning. Migration risks extend north into South Dakota and Minnesota during this time, as well. Additional risks are likely next week so stay tuned to the forecast as we head into next week.