A large field test of the newly developed boll weevil bait stick was conducted in Rutherford County, Tennessee during 1991. Fields with detectable emerging spring boll weevil populations were surrounded with bait sticks at the rate of 1 per acre. Most fields were apparently weevil free for 1-15 weeks during the season. In-season boll weevil reproduction may have been limited to one out of 45 total fields in the county. Low levels of migrating weevils were evident during the fall. Distribution of fall trap catches suggest that these weevils emanated from a single infested field.