Wireworms are a sporadic problem for farmers planting corn in Iowa, but the problem does appear to be on the increase. Stand loss occurs in a very small percentage of Iowa fields, but where the problem does exist, it may persist for several years. The exact cause of this increase in wireworm problems is not known, but the relatively mild winters of 1997-2000 may be partly responsible for higher than normal survival.
Iowa State University
Rice, Marlin E., "Wireworm insecticide evaluation" (2001). Integrated Crop Management News. 2001.
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