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Insect Forecast


Is your corn at risk? monitors weather patterns and provides daily insect migration data for crop-damaging insects such as Corn Earworm and Western Bean Cutworm. These risk forecasts utilize strategically placed moth traps across the major crop-growing areas of the country and combined with weather patterns, can provide flight patterns up to five days in advance. Information is updated daily May through September. Stay ahead of the game with

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April 18, 2014
Corn Earworm

No risk of corn earworm migration is predicted in the next five days.

April 18, 2014
Western Bean Cutworm

No risk of western bean cutworm emergence or development is predicted in the next five days.

April 18, 2014
Corn Rootworm

No risk of corn rootworm hatch is predicted in the next five days.

April 18, 2014
Soybean Aphid

Soybean aphid egg hatch is likely underway from portions of northeast Nebraska into far southeast South Dakota, northwest and west central Iowa through central and east central Iowa, portions of northern Illinois, northern Indiana, and far northwest Ohio. With below average temperatures expected for much of this week across the Midwest, additional egg hatch is not likely to occur too much further to the north from the existing risk area, but some additional hatches may occur over the weekend and early next week especially in northeast Iowa, far northern Illinois, extreme southern Wisconsin, and also into portions of far southwest and south central Michigan. Any early-hatching aphids last weekend may have been exposed to a hard freeze especially in Nebraska, South Dakota, and Iowa which may limit the initial aphid population, at least on a local basis, in these areas.

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