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Mexican and western corn rootworms (MCR, WCR) are very similar in their biology and the type of damage they cause. Southern corn rootworm (SCR) lay eggs in emerging corn such that crop rotation may not provide adequate control. SCR have multiple generations per year, unlike MCR and WCR, which have only one generation. In-season root digs and scouting are important steps for managing corn rootworm. Management strategies include rotation, scouting, insecticide applications when warranted, and planting corn products with insect trait protection.
For more information on Mexican and Southern Corn Rootworm management, check out this article from Genuity®.