Insect Alert For

Corn Earworm

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

An active weather pattern is expected to continue through the next week or so across much of the corn-growing region. As a result, corn earworm migration risks will be rather prevalent but, for the time being, will remain in the Low category due to crops not being at a stage where damage could occur as a result of corn earworm migration. One low pressure system is expected to move northeast out of the Dakotas into Canada over the weekend and into early next week. A cold front is slated to push east across the corn-growing region with south to southwest winds expected to the east of the front. Low risks are initially in place in the Plains, western Midwest, and portions of the upper Midwest tonight into tomorrow morning with the risk spreading east into Missouri, Iowa, Illinois, southern Minnesota, and Wisconsin by Saturday night into Sunday morning. The front is expected to weaken by early next week but enough southerly winds should remain east of the front for a continued Low risk across the eastern corn-growing region for Sunday night into Monday morning. Looking further ahead, the next weather system is likely to develop across the Plains states by Tuesday or Wednesday of next week, and southerly winds should return to this region by next Tuesday night and Wednesday morning. Low risks are introduced into the Day 5 period for this next weather system.