3-Methyl-6-isopropenyl-9-decen-1-ol acetate is a sex pheromone component isolated from female California red scale (Aonidiella aurantii), primarily used for monitoring and controlling this citrus pest. The synthetic (3S,6R)-isomer exhibits the highest attractiveness, and when combined with the (3S,6S)-isomer in mating disruption formulations, it effectively interferes with male orientation to females, reducing mating success and population density.