It is that time of year when your corn rootworm management strategy should be examined. We are currently digging corn roots in our research plots to evaluate the performance of the seed treatments, soil insecticides, and YieldGard Rootworm (YGRW) hybrids. As you dig corn roots, you might find larvae feeding on the roots of YGRW hybrids or adult beetles in the field. Either of these situations may come as a surprise if you are unfamiliar with the technology.
Iowa State University
Rice, Marlin E. and Tollefson, Jon J., "Rootworms and YieldGard RW hybrids" (2005). Integrated Crop Management News. 1423.
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