title: Synthesis and field bioassay of some analogs of sex pheromone of citrus mealybug,Planococcus citri (Risso).
abstract: A series of structural analogs of (s+)-cis-(1R)-3-isopropenyl-2,2-dimethylcyclobutanemethanol acetate, sex pheromone of the citrus mealybug,Planococcus citri (Risso), was synthesized. The analogs were tested in a field bioassay in order to determine the structure-activity relationships of the pheromone. All changes in structure reduced the activity of the test compounds, to various degrees. The most active analog tested was the homolog (+)-cis-(1R)-3-isopropenyl-2,2-dimethylcyclobutaneethanol acetate (IV), whose activity, at a higher dosage, was comparable to that of the pheromone. The alcohol (+)-cis-(1R)-3-isopropenyl-2,2-dimethylcyclobutanemethanol was tested in mixtures with the pheromone and found to be neither an inhibitor nor a Synergist. The results show that all functional groups of the pheromone molecule are essential for optimal biological activity.
authors.affiliation: Institute of Plant Protection, ARO The Volcani Center, 50 250, Bet Dagan, Israel.
authors.forename: E
authors.initials: E
authors.lastname: Dunkelblum
authors.forename: Y
authors.initials: Y
authors.lastname: Ben-Dov
authors.forename: Z
authors.initials: Z
authors.lastname: Goldschmidt
authors.forename: J L
authors.initials: JL
authors.lastname: Wolk
authors.forename: L
authors.initials: L
authors.lastname: Somekh