Minor Components of the Female Sex-Attractant Pheromone of the Smaller Tea Tortrix Moth (Lepidoptera : Tortricidae) : Isolation and Identification

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Two additional components of the female sex-attractant pheromone of the smaller tea tortrix moth, Adoxophyes sp., were isolated by a bioassay employing the release and trapping of male moths in a field cage. The two minor components isolated were identified as (E)-11-tetradecenyl acetate and 10-methyldodecyl acetate. Thus, the sex pheromone of this species is a four-component system comprising (Z)-9-, (Z)-11-, and (E)-11-tetradecenyl acetates and 10-methyldodecyl acetate in a ratio of 63 : 31 : 4 : 2. Besides the four pheromone components, seven acetates were identified as pheromone analogues. These are dodencyl, dodeceyl, tidecenyl, tetradecyl, 12-methyltetradecyl, pentadecenyl, and hexadecenyl acetates. A synthetic mixture of teh four pheromone components was competitive with live virgin females in the field with respect to attractiveness for males.
1979-02-25