Integrated Crop Management News

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Black cutworms are occasional pests of seedling corn in Iowa. Larvae can easily cut corn through the V4, and sometimes, the V5 stages of growth. Adult moths prefer to lay their eggs in soybean stubble rather than corn stubble, and they are more attracted to fields with winter annual weeds and low-lying wet fields. Prevention of cutting and stand loss from black cutworms is a goal of many corn farmers. A neonicotinoid insecticide applied to the corn seed prior to planting offers the promise of early-season insect control from this and other insects.

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Iowa State University



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