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SEX PHEROMONE COMPONENT OF THE WESTERN BLACKHEADED BUDWORM, ACLERIS GLOVERANA WALSINGHAM (LEPIDOPTERA: TORTRICIDAE)

Published online by Cambridge University Press:  31 May 2012

T.G. Gray ,
R.F. Shepherd ,
G. Gries  and
R. Gries
T.G. Gray*
Affiliation:
Natural Resources Canada, Pacific Forestry Centre, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
R.F. Shepherd
Affiliation:
Natural Resources Canada, Pacific Forestry Centre, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
G. Gries
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
R. Gries
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
*
1Author to whom correspondence should be addressed.
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Abstract

(E)-11,13-Tetradecadienal (E11,13-14:Ald) is the major component of the sex pheromone of the western blackheaded budworm (WBB), Acleris gloverana Walsingham. The compound was identified in extracts of the female’s pheromone gland by coupled gas chromatographic - electroantennographic detection (GC-EAD) and coupled GC - mass spectrometry in selected ion monitoring mode. In field experiments, E11,13-14:Ald by itself was attractive, but addition of (Z)-11,13-tetradecadienal doubled trap catches of male WBB. (E)-11,13-Tetradecadienol or (E)-11,13-tetradecadienyl acetate in binary or ternary combination with E11,13-14:Ald did not enhance attractiveness of the bait. In comparative assessments of five different trap designs, Uni-traps appeared to be the most suitable for use in pheromone-based monitoring of populations of WBB.

Résumé

Le (E)-11,13-tétradécadiénal (E11,13-14 : Ald) est la principale composante de la phéromone sexuelle de la Tordeuse à tête noire de l’ouest, Acleris gloverana Walsingham. La substance a été identifiée dans des extraits de la glande à phéromones de femelles, par chromatographie en phase gazeuse couplée à une méthode de détection électro-antennographique (GC-EAD) et par chromatographie en phase gazeuse couplée à une méthode spectrométrique ciblant l’enregistrement d’ions spécifiques. Dans des expériences sur le terrain, la composante isolée exerçait une certaine attraction, mais l’addition de (Z)-11,13-tétradécadiénal a doublé le nombre de mâles de tordeuses attrappés dans les pièges. Du (E)-11,13-tétradécadiénol ou de l’acétate de (E)-11,13-tétradécadiényl en combinaison binaire ou ternaire avec du E11,13-14 : Ald n’augmentait pas le pouvoir d’attraction de l’appât. Une étude comparative de cinq types de pièges différents a révélé que les pièges Uni semblent être les plus appropriés pour évaluer les populations de Tordeuses à tête noire de l’ouest par utilisation de phéromone.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 128 , Issue 6 , December 1996 , pp. 1135 - 1142
Copyright
Copyright © Entomological Society of Canada 1996

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