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The synergistic attractiveness effect of plant volatiles to sex pheromones in a moth
Yulei Fang,Rui Zeng,Shufang Lu,Luyao Dai,Xinlong Wan 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.1
The effects of plant-derived chemicals (volatiles) on the attraction of the Spodoptera litura moth to sex pheromoneswere evaluated using an electroantennogram (EAG). Neuronal responses of male moths to sex pheromonemixtures (SPs) (a 9:1 mixture of synthetic (9Z,11E)-9,11-tetraddecadienyl acetate (Z9E11-14:OAc) and(9Z,12E)-9,12-tetradecadienyl acetate (Z9E12-14:OAc)) and to SPs mixtures with eight plant volatiles (benzaldehyde,(E)-β-caryophyllene, phenylacetaldehyde, 2,6-nonadienal, benzyl alcohol, racemic linalool, longifolene,and (E)-β-ocimene) were also measured. Then, wind tunnels and field trapping bioassays were conducted todetermine the influence of plant volatiles on S. litura moth behavioral responses to SPs. The results indicated thatbenzaldehyde, phenylacetaldehyde, and benzyl alcohol significantly enhanced, and longifolene, (E)-β-caryophyllene,and (E)-β-ocimene had no significant effect on the attractions to SPs, whereas racemic linaloolsignificantly decreased the attraction of male S. litura moths to SPs throughout the olfactory pathway. 2,6-Nonadienal significantly enhanced olfactory responses, but had no significant effect on output behavior. Thesefindings provide foundations in utilization of plant volatiles and sex pheromones to manage the pest and otheragricultural pests.