title: Sex pheromone components of the oblique-banded leafroller,Choristoneura rosaceana in the Okanagan Valley of British Columbia.
abstract: (Z)-11-Tetradecen-1-yl acetate, (E)-11-tetradecen-1-yl acetate, and (Z)-11-tetradecen-1-ol were previously reported as the sex pheromone in New York strains of the oblique-banded leafroller,Choristoneura rosaceana (Harris), and (E)-11-tetradecen-1-ol was tentatively identified in female tip extracts. For Okanagan Valley strains ofC. rosaceana, an additional component, (Z)-11-tetradecenal, was identified from female tip extracts by split-less capillary gas-liquid chromatography and mass spectroscopy and was strongly stimulatory in electroantennogram studies. In field tests, 3 mg of 96.5∶2∶1.5 (Z)-11-tetradecen-1-yl acetate, (E)-11-tetradecen-1-yl acetate, and (Z)-11-tetradecen-1-ol (containing approx. 1%E isomer) was not as attractive as female-baited traps, and significant numbers of European leafrollerArchips rosanus L. were attracted. The above blend with 1% (Z)-11-tetradecenal added was significantly more attractive than traps baited with femaleC. rosaceana, butA. rosanus males were still attracted. Increased percentages of (Z)-11-tetradecenal up to 4% caused increased catches ofC. rosaceana and decreased catches ofA. rosanus. Low amounts of (E)-11-tetradecen-1-ol and (E)-11-tetradecenal male also contribute to increased specificity of the synthetic pheromone blend toC. rosaceana.
authors.affiliation: Agriculture Canada, Research Station, VOH 1Z0, Summerland, British Columbia, Canada.
authors.forename: J M
authors.initials: JM
authors.lastname: Vakenti
authors.forename: A P
authors.initials: AP
authors.lastname: Gaunce
authors.forename: K N
authors.initials: KN
authors.lastname: Slessor
authors.forename: G G
authors.initials: GG
authors.lastname: King
authors.forename: S A
authors.initials: SA
authors.lastname: Allan
authors.forename: H F
authors.initials: HF
authors.lastname: Madsen
authors.forename: J H
authors.initials: JH
authors.lastname: Borden