Insect Alert For

Corn Earworm

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

Northwest flow is predicted to hold for another day before the overall central United States weather pattern transitions into a southwest to northeast flow. Once the transition occurs, especially by this weekend, corn earworm migration prospects do increase but likely only on an isolated basis due to generational stage and host plant growth in present source regions. No migration risk is predicted through Friday, but Low risks are in place across the Plains states Friday night into Saturday. The risk spreads east Saturday night into Sunday with some fields potentially as far north as Minnesota, Wisconsin, and Michigan and east into Ohio seeing isolated flights here and there. Additional flights will remain possible across much of the corn-growing region especially along and south of I-90 through the middle portion of next week as a frontal boundary meanders north and south across the region. Growers are advised that some corn earworm moth counts are likely to increase in the next week but on primarily on an isolated basis only.