Sex pheromone components of the sandthorn carpenterworm, Holcocerus hippophaecolus.
Extracts of female sex pheromone gland of the carpenterworm moth, Holcocerus hippophaecolus Hua, a pest of sandthorn, Hippophae rhamnoides L. were found to contain (E)-3-tetradecenyl acetate (E3-14:Ac), (Z)-3-tetradecenyl acetate (Z3-14:Ac), (Z)-7-tetradecenyl acetate (Z7-14:Ac), the corresponding alcohols, E3-14:OH, Z3-14:OH, Z7-14:OH, and (E)-9-tetradecenyl acetate (E9-14:Ac). Electroantennographic (EAG) analysis of these chemicals and their analogs demonstrated that Z7-14:Ac elicited the largest male EAG response, followed by E3-14:Ac. In field trials, traps baited with either Z7-14:Ac or E3-14:Ac alone caught no male moths, whereas a combination of these two components in a 1:1 ratio caught more males than control traps. Addition of Z7-14:OH and Z3-14:OH or the alcohols plus E9-14:Ac did not enhance trap catches. We conclude that the sex pheromone of H. hippophaecolus is composed of Z7-14:Ac and E3-14:Ac. Optimal ratios and doses of these two components, and the possible role of other minor components, remain to be determined.
Fang
Yu-Ling
YL
State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, PR China.
Sun
Jiang-Hua
JH
Zhao
Cheng-Hua
CH
Zhang
Zhong-Ning
ZN
D000085:Acetates / Q000737:chemistry; D000818:Animals; D002681:China; D005088:Exocrine Glands / Q000737:chemistry / Q000502:physiology; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D008297:Male; D009036:Moths / Q000737:chemistry / Q000502:physiology*; D012679:Sense Organs / Q000502:physiology*; D012724:Sex Attractants / Q000032:analysis / Q000737:chemistry*; D014020:Tissue Extracts / Q000737:chemistry
D000085:Acetates; D012724:Sex Attractants; D014020:Tissue Extracts