Corn rootworm egg hatch was delayed this year because of cool spring temperatures, and adults are beginning to emerge throughout Iowa. Now is a good time to assess root injury caused by larvae and also monitor for adult activity in corn.
Iowa State University
Hodgson, Erin W. and Gassmann, Aaron J., "Time to Assess Corn Rootworm Activity in Iowa" (2013). Integrated Crop Management News. 50.
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