Western Bean Cutworm: Western bean cutworm moth flights continue in select portions of the corn-growing region but are beginning to subside in some areas as heat unit accumulations continue to grow. Moderate risks remain in place across northeast Nebraska, northwest Iowa … Read More »
Corn Earworm: A favorable weather pattern for corn earworm migration will remain in place especially west of Lake Michigan and the Illinois/Indiana border into early next week. Moderate risks are in place each day through early next week as at least scattered mot … Read More »
Corn Rootworm: Corn rootworm risks remain in place across a large portion of the corn-growing region as adult beetle emergence and feeding continues in scattered areas. The greatest pressure at this time is focused primarily north of I-80 as corn crops further to … Read More »
Soybean Aphid: Moderate soybean aphid risks remain across northern Iowa into southern and central Minnesota this week with additional Moderate risks now in place across northwest Minnesota and far eastern North Dakota. Low risks are predicted across eastern South … Read More »
This site forecasts the daily migration of crop damaging insects up to five days in advance. Information is available May through September.
Corn Earworm (Helicoverpa zea) Corn earworm is found throughout North America except for northern Canada and Alaska. Normally, corn earworm does not overwinter successfully in the northeastern United States. It is known to survive as far north as about 40…