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. 1986 Jun;12(6):1239-45.
doi: 10.1007/BF01012344.

Western avocado leafroller,Amorbia cuneana (Walsingham), (Lepidoptera: Tortricidae) : Discovery of populations utilizing different ratios of sex pheromone components

J B Bailey  1 , L M McDonough, M P Hoffmann
Affiliations

Western avocado leafroller,Amorbia cuneana (Walsingham), (Lepidoptera: Tortricidae) : Discovery of populations utilizing different ratios of sex pheromone components

J B Bailey et al. J Chem Ecol. 1986 Jun.

Abstract

The most effective lure for maleAmorbia cuneana (Walsingham) in Orange, Ventura, and Riverside counties of California was previously found to be a 1∶1 ratio of (E,E)-10,12- and (E,Z)-10,12-tetradecadien-1-ol acetates. In subsequent field tests in San Diego and Santa Barbara counties, this lure was ineffective. Analysis of sex pheromone glands (SPG) of femaleA. cuneana from these two counties showed theEE:EZ ratio to be about 1∶9 and synthetic lures of this composition were highly attractive in these areas. Analysis of the SPG of a number of females from both areas showed that there were three population types: two in the low ratio areas possessed 37 and 58%EZ, and the third in the high ratio areas possessed 89%EZ.

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