Insect Alert For

Corn Earworm

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Alert Details

Corn earworm migration risks remain in the Low category for tonight into tomorrow morning as a cold front pushes southeast through the corn-growing region. South to southwest winds are predicted to the southeast of the front, but with source regions originating further to the west across the southern Plains versus in the mid-south and Mississippi River valley, only Low risks are predicted at this time mainly for isolated flights into the central and eastern corn-growing region from Kansas northeast into Missouri, southeast Iowa, Illinois, far southern Wisconsin, southern lower Michigan, Indiana, far northern Kentucky, and western Ohio. No migration risks are predicted through mid-week of next week as northwest flow and high pressure lock back in across the upper Midwest which should keep any migrating corn earworm across their source regions in the south and mid-south regions. Growers in the Midwest, however, are advised to keep an eye on their fields for signs of larvae as earlier flights this summer are now moving into larvae and feeding stages with scattered reports coming in of larvae presence in some fields.