Sex pheromone components of mulberry looper, Hemerophila atrilineata butler (Lepidoptera: Geometridae)


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Authors: Tan, ZX; Gries, R; Gries, G; Lin, GQ; Pu, GQ; Slessor, KN; Li, JX
Year: 1996
Journal: Journal of Chemical Ecology 22: 2263-2271
Title: Sex pheromone components of mulberry looper, Hemerophila atrilineata butler (Lepidoptera: Geometridae)
Abstract: (6Z-9S, 10R)-Epoxy-octadecene (SR-1) and (3Z, 6Z-9S, 10R)epoxy-octadecadiene (SR-2) are sex pheromone components of the mulberry looper (MEL), Hemerophila atrilineata Butler. Compounds extracted from female MBL pheromone glands were identified by coupled gas chromatographic-electroantennographic detection (CC-BAD) and CC-mass spectrometry. In field experiments in China, SR-2, RS-2, or both combined were hardly attractive, but SR-2 in combination with SR-I attracted significant numbers of MBL males. Synergistic behavioral activity of SR-1 plus SR-2, but not of corresponding antipode mixtures, indicates enantiospecificity of MBL pheromone communication. Because blends of racemic and enantiospecific (SR) I plus 2 were similarly attractive, racemic 1 plus 2 may have potential for mass trapping or confusion of MBL males in commercial mulberry plantations.
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