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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

Black Cutworm

April 29, 2016

Another low pressure system is predicted to pass through the Plains and into the corn-growing region this weekend. To the east of this low pressure system, modest south to southwest winds may result in some isolated black cutworm moth flights initially into eastern Kansas, Missouri, and southwest Illinois tonight into tomorrow morning. By tomorrow night into Sunday morning, the main risk shifts into the Ohio River valley as the cold front pushes to the southeast and out of the corn-growing region. No additional risks are predicted into next week as northwest flow is predicted to return to the corn-growing region.

Corn Earworm

April 29, 2016
No Risk

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

Corn Rootworm

April 29, 2016
No Risk

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

Soybean Aphid

April 29, 2016

Soybean aphid egg hatch risks continue especially along and north of the I-94 corridor from North Dakota into Minnesota, northern Wisconsin, northern and central lower Michigan, and also into portions of southern Ontario, Canada. The majority of egg hatches should be complete this week in the vast majority of the Midwest and Great Lakes region.

Western Bean Cutworm

April 29, 2016
No Risk

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