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Corn Earworm Archive

Corn Earworm Forecast
August 11, 2025

Moderate corn earworm migration risks are predicted tonight into tomorrow across portions of Illinois, Indiana, Ohio, lower Michigan, and into souther…

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Corn Earworm Forecast
August 8, 2025

Moderate corn earworm migration risks are predicted tonight into tomorrow across portions of Iowa, Minnesota, Wisconsin, Illinois, Indiana, and Michig…

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Corn Earworm Forecast
August 7, 2025

Moderate corn earworm migration risks are predicted tonight into tomorrow across portions of Nebraska, Missouri, Iowa, Minnesota, Wisconsin, Illinois,…

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Corn Earworm Forecast
August 6, 2025

Moderate corn earworm migration risks are predicted tonight into tomorrow across portions of Nebraska, South Dakota, Missouri, Iowa, Minnesota, Wiscon…

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Corn Earworm Forecast
August 5, 2025

Low corn earworm migration risks are predicted tonight into tomorrow mainly west of Lake Michigan, with Moderate risks tomorrow night into Thursday ac…

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Corn Earworm Forecast
August 4, 2025

Low corn earworm migration risks are predicted mainly across the Plains states and western corn-growing region areas west of I-35 tonight into tomorro…

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Corn Earworm Forecast
August 1, 2025

Low corn earworm migration risks are predicted as early as tomorrow night across the Plains states and west of I-35.

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Corn Earworm Forecast
July 31, 2025

Low corn earworm migration risks envelop much of the corn-growing region by later in the weekend and early next week, initially focusing west of I-35 …

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Corn Earworm Forecast
July 30, 2025

Low corn earworm migration risks are predicted by late Saturday into Sunday across the Plains states with the risk then spreading/expanding east to ne…

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Corn Earworm Forecast
July 29, 2025

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

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Corn Earworm Forecast
July 28, 2025

Moderate corn earworm migration risks are predicted across portions of Iowa, Wisconsin, Illinois, Indiana, Ohio, Michigan, and into far southwest Onta…

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Corn Earworm Forecast
July 25, 2025

Low corn earworm migration risks are predicted across a large portion of the corn-growing region through Sunday, with Moderate risks also in place acr…

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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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