Effects of gene flow between <scp>Bt</scp> and <scp>non‐Bt</scp> plants in a seed mixture of <scp>Cry1A</scp>.105 + <scp>Cry2Ab</scp> corn on performance of corn earworm in <scp>Arizona</scp>

Abstract

Our results indicate that gene flow between Bt and non-Bt plants in seed mixtures reduced effective refuge size, and that block refuges may be needed to manage the evolution of H. zea resistance to Bt corn in Arizona. © 2020 Society of Chemical Industry.