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Corn Earworm Forecast
July 2, 2026

Moderate corn earworm migration risks are possible tonight into tomorrow from Kansas, Nebraska, and southeast South Dakota as far east as southern low…

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Corn Earworm Forecast
July 1, 2026

Moderate corn earworm migration risks are predicted tonight into tomorrow from Kansas, Missouri, and Illinois north as far as Minnesota, Wisconsin, an…

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Corn Earworm Forecast
June 30, 2026

Moderate corn earworm migration risks are predicted from Kansas and eastern Nebraska eastward into Minnesota, Iowa, Missouri, Illinois, Wisconsin, Ind…

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Corn Earworm Forecast
June 29, 2026

Moderate corn earworm migration risks are predicted tonight through at least midday Wednesday across portions of Kansas, Nebraska, Missouri, Iowa, Min…

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Corn Earworm Forecast
June 26, 2026

Low corn earworm migration risks are predicted for tomorrow night into Sunday especially west of the US 51 and I-39 corridors in Wisconsin and Illinoi…

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Corn Earworm Forecast
June 25, 2026

Low corn earworm migration risks are predicted Saturday night into Sunday mainly west of Lake Michigan, with risks then expanding east as far as Michi…

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Corn Earworm Forecast
June 24, 2026

Low corn earworm migration risks are predicted Saturday night into Sunday mainly west of I-39 and US 51 in Wisconsin and Illinois, with the risk expan…

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Corn Earworm Forecast
June 23, 2026

Low corn earworm migration risks are predicted mainly along and west of the US 51 and I-39 corridors in Wisconsin and Illinois Saturday night into Sun…

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Corn Earworm Forecast
June 22, 2026

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

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Corn Earworm Forecast
June 19, 2026

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

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Corn Earworm Forecast
June 18, 2026

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

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Corn Earworm Forecast
June 17, 2026

Low corn earworm migration risks are predicted tonight into tomorrow roughly along/southeast of the I-44 and I-70 corridors from southern Missouri int…

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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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