Black cutworm (BCW) is a migratory pest that arrives in Iowa with spring storms each year. BCW moths lay eggs in and near crop fields, and larvae can cut corn seedlings or feed on leaves. Even though crops were planted earlier this year than previous years, cold temperatures may slow growth and allow BCW larvae to coincide with early vegetative corn that is vulnerable to BCW injury.
Iowa State University
Dean, Ashley and Hodgson, Erin W., "2020 Scouting Recommendations for Black Cutworm" (2020). Integrated Crop Management News. 2632.
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