Insect Alert For

Corn Earworm

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

With northwest flow expected to dominate the weather for the next few nights, little to no corn earworm migration risk is anticipated until we get into late week and the weekend. Low risks return to the forecast especially across the Plains states but also further east into at least the western corn-growing region by Thursday night into Friday. Southerly winds are expected to increase ahead of a developing low pressure system and attendant cold front across the western Plains states. Isolated corn earworm migration events may occur mainly west of Lake Michigan during this time. By the weekend, there is some uncertainty in how quickly a surface front moves southeast, so Low risks are maintained across a fairly large portion of the corn-growing region from the eastern Plains all the way east into the southern Great Lakes and eastern corn-growing region. Stay tuned for updates later this week once forecast confidence increases.