The paper provides information on the evolution of the BWACT/TMP/TMB and its use in boll weevil prevention and eradication programs in Argentina and Bolivia. The use of the BWACT/TMP/TMB in these two national programs has provided biological, operational and economical benefits, some of which are:

3.8 to 7.7 times greater attraction of weevils as compared to traps, 60 days minimum residual control of weevils (100 % mortality), 55 days pheromone liberation at an average of 1.1 mgs per day vs. 14 days at 0.7 mgs for traps, attraction and control of weevils that emerge between spray applications, attraction and control of weevils between crops, when they leave overwintering sites to forage for pollen and/or moisture, and program component costs of less than $0.15 per day to attract and kill weevils.