We delivered to growers and Extension educators a workshop addressing good agricultural practices (GAP) for produce safety. To assess the workshop's effects as applicable to behavioral intervention theory, we studied past behaviors, behavioral intentions, and changes in knowledge. Workshop participants had been aware of but did not fully understand certain GAP, such as implementing written food safety plans; after the workshop, both groups reported improved understanding of various concepts. Producers were mixed regarding intent to make GAP-related changes after workshop participation, whereas the educators overall were likely to make changes related to teaching GAP. We concluded that producers need more training on GAP and Extension educators should develop programs accordingly.