Insect Alert For

Corn Earworm

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Alert Details

A strong cold front is still expected to pass through the corn-growing region this weekend and into early next week. Much cooler weather is likely next week on gusty north to northwest winds. However, before the front passes, a corridor of southwest to southerly winds is likely right ahead of the front and this may allow a few isolated corn earworm moths to fly north and northeast the next few nights. The primary concern tonight into tomorrow is across northeast Iowa, extreme southeast Minnesota, Wisconsin, northern Illinois, northern Indiana, northwest Ohio, and into southern lower Michigan. Low risks then focus further east tomorrow night into Sunday across northeast and eastern Illinois, northern Indiana, northern Ohio, lower Michigan, and into southern Ontario, Canada. Growers with crops still at susceptible stages to damage are encouraged to continue monitoring traps and scouting fields until either crop advances in growth past critical growth stages or is harvested.