This paper reports results of studies to evaluate the progress of the boll weevil eradication program conducted by the Texas Boll Weevil Eradication Foundation in the Southern Rolling Plains (SRP) of Texas. Data from a boll weevil pheromone trapping study and a winter habitat sampling study are presented. Data from both studies support the effectiveness of the eradication effort. Data from the trapping study indicate that numbers of overwintered boll weevils were reduced by 99.9% between 1994 and 1998.