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The agricultural region in the midwestern U.S. that is a major producer of maize is called the Corn Belt. This figure shows the major maize grain production area within this region, a Dvv insecticide use/field-evolved resistance timeline associated with continuous maize, and the geographic location of states Nebraska and Kansas where Dvv resistance to multiple insecticides has occurred. Maize grain production area is based on USDA-NASS 2015–2019 data [42,43].
