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Corn Earworm Forecast
August 26, 2026

Low corn earworm migration risks are in the forecast beginning Friday especially west of Lake Michigan but expand to include much of the corn-growing …

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Corn Earworm Forecast
August 25, 2026

Low corn earworm migration risks are predicted roughly along/east of the I-35 corridor tonight into tomorrow as a cold front moves southeast.

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Corn Earworm Forecast
August 24, 2026

Low corn earworm migration risks mainly for isolated but potentially intense moth flights are in the forecast tonight into tomorrow mainly west of the…

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Corn Earworm Forecast
August 21, 2026

Low corn earworm migration risks are predicted initially west of the Great Lakes by later Sunday into Monday before potentially moving further east in…

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Corn Earworm Forecast
August 20, 2026

Low corn earworm migration risks are predicted later Sunday into Monday and also Monday into Tuesday as southerly winds increase especially across wes…

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Corn Earworm Forecast
August 19, 2026

Low corn earworm migration risks are predicted Saturday night into Sunday mainly west of the Mississippi River and along/west of the US 51 corridor in…

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Corn Earworm Forecast
August 18, 2026

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

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Corn Earworm Forecast
August 17, 2026

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

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Corn Earworm Forecast
August 14, 2026

Low corn earworm migration risks are predicted roughly along and east of the I-35 corridor to near the I-75 corridor tonight into tomorrow ahead of a …

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Corn Earworm Forecast
August 13, 2026

Low corn earworm migration risks are predicted tonight into tomorrow roughly along and south of the US 20 corridor in eastern Nebraska, Iowa, northern…

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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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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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