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Corn Earworm Forecast
August 12, 2026

Low corn earworm migration risks are predicted through Friday mainly along/south of the US 20 corridor in Nebraska, Iowa, and Illinois, and then south…

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Corn Earworm Forecast
August 11, 2026

Low corn earworm migration risks are predicted tonight into tomorrow from Kansas, Missouri, and Kentucky as far north as the US 20 corridor in Nebrask…

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Corn Earworm Forecast
August 10, 2026

Low corn earworm migration risks are found along/south of roughly the US 20 corridor for the next few nights as a frontal boundary slowly sags to the …

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Corn Earworm Forecast
August 7, 2026

Low corn earworm migration risks are predicted tonight into tomorrow roughly along/east of the I-35 corridor especially along/south of the US 20 and I…

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Corn Earworm Forecast
August 5, 2026

Low corn earworm migration risks are predicted across the southeastern third or so of the corn-growing region from Kansas northeast into lower Michiga…

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Corn Earworm Forecast
August 4, 2026

Low corn earworm migration risks are predicted tonight into tomorrow from eastern Kansas northeast across far southeast Nebraska, into Iowa, southern …

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Corn Earworm Forecast
July 27, 2026

Low corn earworm migration risks are predicted tonight into tomorrow from southeast Kansas east across Missouri, central and southern Illinois, Kentuc…

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Corn Earworm Forecast
July 20, 2026

Low corn earworm migration risks are predicted southeast of a cold front from Kansas and Missouri north into Nebraska, Iowa, Illinois, Kentucky, India…

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Corn Earworm Forecast
July 17, 2026

Moderate corn earworm migration risks are predicted tonight into tomorrow from Kansas into Nebraska, Missouri, Iowa, Minnesota, Wisconsin, Illinois, I…

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Corn Earworm Forecast
July 16, 2026

Moderate corn earworm migration risks are predicted tonight into tomorrow for portions of Kansas, Nebraska, South Dakota, Minnesota, Iowa, and Missour…

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Corn Earworm Forecast
July 3, 2026

Moderate corn earworm migration risks are predicted tonight into tomorrow from Kansas, Iowa, and Minnesota as far east as Michigan and Ohio.

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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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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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