Cucurbit crops, especially muskmelon and cucumber, attract cucumber beetles, which vector Erwinia tracheiphila, the causal agent of bacterial wilt. High numbers of overwintering beetles, which often lead to high bacterial wilt incidence, usually occur during the first stages of plant establishment. Growers of organic muskmelon need effective ways to manage the cucumber beetle/bacterial wilt complex, particularly during the highestrisk period early in the season.