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Corn Earworm Archive

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 15, 2026

Low corn earworm migration risks are predicted generally along/west of US 65 tonight into tomorrow.

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Corn Earworm Forecast
July 14, 2026

Low corn earworm migration risks are predicted tonight into tomorrow mainly west of I-35 and US 65 in the Plains and western corn-growing region.

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Corn Earworm Forecast
July 13, 2026

Low corn earworm migration risks are predicted through Wednesday mainly along/west of the I-35 corridor, but an eastward expansion is anticipated by F…

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Corn Earworm Forecast
July 10, 2026

Low corn earworm migration risks are predicted beginning Sunday night and lasting into Wednesday next week primarily focused west of the Great Lakes r…

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Corn Earworm Forecast
July 9, 2026

Low corn earworm migration risks are predicted by early next week mainly west of the I-35 and I-49 corridors in the Plains and western/central corn-gr…

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Corn Earworm Forecast
July 8, 2026

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

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Corn Earworm Forecast
July 7, 2026

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

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Corn Earworm Forecast
July 6, 2026

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

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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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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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