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Corn Earworm Archive

Corn Earworm Forecast
September 15, 2025

Low corn earworm migration risks are predicted tonight into tomorrow mainly west of the I-55 corridor, with the risk spreading east to near Lake Michi…

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Corn Earworm Forecast
September 12, 2025

Low corn earworm migration risks especially into processing and fresh market fields is predicted mainly west of Lake Michigan through early next week,…

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Corn Earworm Forecast
September 11, 2025

Low corn earworm migration risks focus mainly along/west of the Mississippi River tonight into tomorrow, and then as far east as Lake Michigan and the…

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Corn Earworm Forecast
September 10, 2025

Low corn earworm migration risks are predicted tomorrow night into Friday mainly west of the Mississippi River, and then risks expand east to Lake Mic…

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Corn Earworm Forecast
September 9, 2025

Low corn earworm migration risks are predicted mainly west of Lake Michigan from late Thursday into Saturday, and then as far east as southwest and so…

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Corn Earworm Forecast
September 8, 2025

Low corn earworm migration risks are predicted from Wednesday night into Saturday across remaining vulnerable fields from Kansas, Nebraska, and easter…

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Corn Earworm Forecast
September 5, 2025

There is little to no risk for corn earworm migration in the next five days.

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Corn Earworm Forecast
September 4, 2025

There is little to no risk for corn earworm migration in the next five days.

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Corn Earworm Forecast
September 3, 2025

There is little to no risk for corn earworm migration in the next five days.

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Corn Earworm Forecast
September 2, 2025

There is little to no risk for corn earworm migration in the next five days.

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Corn Earworm Forecast
August 29, 2025

There is little to no risk for corn earworm migration in the next five days.

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Corn Earworm Forecast
August 28, 2025

There is little to no risk for corn earworm migration in the next five days.

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Forecasts are limited to the country’s main crop production regions east of the Rocky Mountains and west of the Appalachian Mountains and parts of Canada. Insect forecasts are based on data analyzed from moth traps located throughout the United States’ main crop production regions as well as predicted weather patterns and field reports and research. Forecasts are estimates based on available information and cannot guarantee actual insect pressure risks. Recommendations for insect pressure risk forecasts are based upon generally accepted practices. Forecasts and recommendations should not be used as a substitute for sound farming practices, including diligent field monitoring, or as a sole means for making risk management decisions.

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