1,2-Dimethoxy-4-(2-propenyl)-benzene, as a plant-derived volatile aromatic compound, is a key component or synergistic substance of sexual pheromones in a variety of insects, especially Coleoptera and Diptera pests (such as orange fruit flies and some beetles), which can strongly attract male insects and interfere with their mating behaviour. At the same time, its synergistic effect with insect pheromones also provides an important molecular template for the development of new traps.