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​Insect Forecast​


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Insect Migration ​Risk Forecast

Is your corn at risk? monitors weather patterns and provides daily insect migration data for crop-damaging insects such as Corn Earworm and Western Bean Cutworm.

These risk forecasts utilize strategically placed moth traps across the major crop-growing areas of the country and combined with weather patterns, can provide flight patterns up to five days in advance. Information is updated daily May through September. Stay ahead of the game with

To receive email alerts when your area is at risk, sign up here.

How to Read the Maps

Corn Earworm

April 24, 2015
No Risk

No risk of corn earworm migration is predicted in the next five days.

Western Bean Cutworm

April 24, 2015
No Risk

No risk of western bean cutworm emergence or development is predicted in the next five days.

Corn Rootworm

April 24, 2015
No Risk

No risk of corn rootworm hatch is predicted in the next five days.

Soybean Aphid

April 24, 2015

Soybean aphid egg hatch is predicted to either commence or continue across much of the soybean-growing region of the upper Midwest and into the Great Lakes region in the next week. Risks extend from the Dakotas and northeast Nebraska east into Minnesota, Iowa, northern Illinois, Wisconsin, lower Michigan, northern Indiana and Ohio, northwest Pennsylvania, and also into southern Ontario, Canada. Cooler temperatures are predicted this week, so any further expansion of the egg hatch risk to the north is expected to be limited this week, and some newly-hatched aphids may not survive predicted freezing temperatures across portions of the upper Midwest this week. Growers are advised that this risk is being issued to provide an awareness that soybean aphids are becoming active in this growing season – it does not mean there is a threat to crops at this time.