(E)-3-Dodecenyl acetate is a key sex pheromone component secreted by female pink bollworm moths (Pectinophora gossypiella), widely employed in integrated pest management in cotton fields. When blended with its Z-isomer (Z-3-12:Ac) at specific ratios, this multi-component lure captures 20-35 male moths per trap daily, improving monitoring accuracy by approximately 40% compared to conventional light traps, thereby guiding targeted pesticide applications.