(7Z,11Z)-Hexadecadienal, a key sex pheromone component isolated from female pink bollworm moths (Pectinophora gossypiella), is deployed in cotton fields to lure males. When blended with (7Z,11E)-isomer to form a multi-component lure, it captures 25-40 male moths per trap daily, enhancing monitoring accuracy by over 50% compared to conventional methods and enabling targeted population control.