Control Adult Corn Rootworms Before They Cost You Corn rootworms cost U.S. growers approximately $1 billion in yield losses and input costs each year, according to estimates from the United States Department of Agriculture (USDA). The good news is Steward® EC insecticide protects your field and seed corn crops from costly adult corn rootworms and Lepidopteran pests commonly resistant to other products and traits. Through its proven class of chemistry, Steward EC insecticide works fast, targeting insects through ingestion as well as contact activity. It delivers rapid feeding cessation of adults and up to three weeks of residual control, as demonstrated in trial results from multiple locations. Plus, with no known resistance, you can have confidence knowing your corn yields are protected.Steward EC insecticide’s unique mode of action has a low impact on predatory insects and mites, helping to prevent secondary pest flares, particularly from spider mites. As it’s the only Group 22 insecticide labeled for use on field corn in the indoxacarb family of chemistry, it also is a great tool for resistance management.To learn more, read our resources below or ask your FMC retailer for more information about Steward EC insecticide.Want to start receiving timely and localized agronomic information from FMC? To sign up, click here.