This information was summarized from a June 23 teleconference with ISU extension field specialists in crops. Thunderstorms, wind, and hail occurred over the state last week. There were reports from scattered areas statewide of hail and wind that caused crop damage. In areas that had severe wind, greensnap was reported. Some fields had 10-40 percent of the plants affected.
Uneven corn continues to be a problem in many areas of the state.
Symptoms of potassium deficiency on corn were reported in a few fields that were short on moisture. Stalk borers are migrating out of ditches into corn. Reports from Floyd and Cerro Gordo counties showed hopvine borer in fencerows. Postemergence herbicides continue to be applied in soybeans with some herbicide burn to leaves. Control of woolly cupgrass and common waterhemp are causing concern.