Bryan Jensen, University of Wisconsin Integrated Pest Management Program, takes you into the field to show you how to use root node injury scoring with corn root worm damage to corn.
Crop rotation is an excellent method of controlling corn rootworms. Larvae perish soon after hatching if a crop other than corn is planted in the field they inhabit. Refer to UWEX publication A3646 Pest Management in Wisconsin Field Crops for management practices.
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