title: Field attraction of Mediterranean fruit fly, Ceratitis capitata (Wiedemann) to synthetic stereoselective enantiomers of the ceralure B1 isomer.
abstract: Stereoselectively synthesized enantiomers of ethyl cis-5-iodotrans-2-methylcyclohexane-1-carboxylate (ceralure B1), a potent lure for male Mediterranean fruit flies, were tested in the laboratory and the field against laboratory reared sterile flies. The (-)-ceralure B1 enantiomer was significantly more attractive than the (+)-ceralure B1 antipode. Dose-response studies of the above compounds demonstrated that (-)-ceralure B1 and to a lesser extent, racemic ceralure B1, captured consistently more male flies than trimedlure, the current male attractant used in detection programs. Longevity tests demonstrated that, over a three-week period, both (-)-ceralure B1 and racemic ceralure B1 caught significantly more flies than trimedlure. The synthesis of specific enantiomers of ceralure B1 shows great promise as a male attractant that could replace trimedlure for detection and delimitation in action programs aimed at this exotic pest.
authors.affiliation: US Pacific Basin Agricultural Research Center, USDA-ARS, Hilo, Hawaii, USA.
authors.forename: E B
authors.initials: EB
authors.lastname: Jang
authors.forename: A S
authors.initials: AS
authors.lastname: Raw
authors.forename: L A
authors.initials: LA
authors.lastname: Carvalho
mesh_terms: D000818:Animals; D033622:Ceratitis capitata / Q000187:drug effects / Q000502:physiology*; D003509:Cyclohexanecarboxylic Acids / Q000737:chemistry* / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D007300:Insect Control; D008297:Male; D010675:Pheromones / Q000494:pharmacology*; D013237:Stereoisomerism; D013997:Time Factors
chemical_list: D003509:Cyclohexanecarboxylic Acids; D010675:Pheromones; C045211:trimedlure