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Corn rootworm resistance spreads

corn

Corteva Agriscience has confirmed the first case of corn rootworm resistance to its Herculex trait in northeast Iowa. The company found resistance to the Herculex Cry34/35Ab1 Bt protein in a Delaware County field planted with an AcreMax Xtra product.

Corn rootworm resistance has been confirmed with three other Bt traited products with Cry3 proteins — YieldGard rootworm (Cry3Bb1), Agrisure RW (mCry3A) and Agrisure Duracade (eCry3.1Ab), noted Evan Sivesind, program manager for the Iowa Pest Resistance Management Program...




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