2-Decyl-3-(5-methylhexyl)oxirane, isolated from female gypsy moths (Lymantria dispar), serves as a key sex pheromone component to attract male counterparts. Synthetic (+)-Disparlure is widely used in pest management by combining with plant volatiles (e.g., α-pinene, methyl salicylate) to create multi-component lures, which significantly enhance trapping efficiency.