Boll Weevil pheromone traplines demonstrated the presence of cotton boll weevil in all cotton growing regions of Mississippi from 1995 to 1998. Traplines were also useful in demonstrating effectiveness of the boll weevil eradication program in the state as well as seasonal movement of weevils from non-eradication areas into areas that had lowered numbers of weevils as a result of eradication efforts.