Dr. David W. Onstad has been an entomologist for over 40 years focusing on insect resistance management, insect epizootiology, economics of integrated pest management, and ecological modeling. He was elected fellow of the Entomological Society of America in 2022. Since retiring after 26 years as a professor at the University of Illinois, he has been the lead mathematical modeler for DuPont Pioneer/CortevaAgriscience in support of data-driven strategic decision-making, assessing resistance risks, and product registration and development of transgenic insecticidal crops.