This case study systematically analyzed the adoption, over a seven‐year period, of governmentally mandated integrated pest management (IPM) practices by brussels sprouts growers in California. Promotion of required IPM practices were complemented by research, technical assistance, and education carried out by Cooperative Extension and other resources. Information, infrastructure, and perceived risk factors that affected growers and their nonadoption of the IPM presence‐absence sampling procedures were investigated. Growers who were required to use the practices were compared with other growers in a three‐county area not required to use the research‐proven IPM methods. The shortcomings of a mandated strategy and associated factors are discussed, emphasizing the need to consider organizational and human elements when requiring new agricultural production practices and behaviors.