A study was conducted to compare population levels of Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae) in Florida, Texas and Puerto Rico. Four grove locations were studied in Florida, one location near each of the following cities: Leesburg, Vero Beach, Fort Pierce, and Immokalee. Four grove locations were also studied in Texas, with one location near each of the following cities: Brownsville, Progresso, Raymondville and McCook. Three grove locations were studied in Puerto Rico, one location near each of the following cities: Adjuntas, Isabela and Corozal. The groves studied were either under minimal insecticide spray programs or under no spray program at all. Yellow sticky traps were deployed directly in citrus trees (one trap per tree, ten trees per study location) and replaced biweekly. Mean number of adult psyllids collected per trap per 2 wk were determined for each study location. Comparisons of numbers of adults captured at traps within and among Florida, Texas and Puerto Rico will be presented.