(Z)-13-Octadecenal is a component of attractants. When used in combination with (Z)-11-octadecenal, (Z)-11-octadecen-1-ol, (Z)-13-octadecen-1-ol, and a mixture of Scirpophaga incertulas, (Z)-13-Octadecenal can trap insects [1].
References:
[1]. Ho G T T, et al. (Z)–11–hexadecenyl acetate and (Z)–13–octadecenyl acetate improve the attractiveness of the standard sex pheromone of the yellow rice stem borer Scirpophaga incertulas (Lepidoptera: Pyralidae) in northern Vietnam[J]. 2014.
References:
[1]. Ho G T T, et al. (Z)–11–hexadecenyl acetate and (Z)–13–octadecenyl acetate improve the attractiveness of the standard sex pheromone of the yellow rice stem borer Scirpophaga incertulas (Lepidoptera: Pyralidae) in northern Vietnam[J]. 2014.