(S)-14-Methyl-1-octadecene is the female sex pheromone component isolated from the peach leafminer moth (Lyonetia clerkella), with the S configuration showing significant biological activity while the R configuration is nearly inactive. This compound is widely used for monitoring and controlling peach leafminer moths. For instance, traps baited with this pheromone in peach orchards effectively capture male moths, with the highest efficiency achieved using boat-shaped traps and 1.0 mg lures, which outperform other trap types in moth capture rates.