(Z)-11-hexadecenal, as a key component of female sex pheromones of a variety of important lepidopteran pests (such as Helicoverpa armigera and Ostrinia furnacalis), has been widely used as a core active ingredient in the monitoring and trapping system of agricultural pests and mating interference technology, in cotton. The green prevention and control system of corn and other crops shows extremely high species specificity and field control efficiency.