On August 22, 2003, the Environmental Protection Agency amended the registration of Herculex™ I Insect Protection to include western bean cutworm. Herculex is a genetically modified protein (Cry1F) that has been inserted into corn to provide in-plant protection. It was developed in collaboration between Dow AgroSciences, Mycogen Seeds, and Pioneer Hi-Bred International, Inc. In addition to western bean cutworm, Herculex I provides protection against first- and second-generation European corn borer, black cutworm, and intermediate suppression of corn earworm.