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Plant Volatiles Enhance Behavioral Responses of Grapevine Moth Males, Lobesia botrana to Sex Pheromone

von Arx, Martin ; Schmidt-Büsser, Daniela ; Guerin, Patrick

In: Journal of Chemical Ecology, 2012, vol. 38, no. 2, p. 222-225

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    Titre
    • Plant Volatiles Enhance Behavioral Responses of Grapevine Moth Males, Lobesia botrana to Sex Pheromone
    Auteur
    • von Arx, Martin. Institute of Biology, Faculty of Sciences, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
    • Schmidt-Büsser, Daniela. Institute of Biology, Faculty of Sciences, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
    • Guerin, Patrick. Institute of Biology, Faculty of Sciences, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Chemical Ecology, 2012, vol. 38, no. 2, p. 222-225. Springer-Verlag
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:312087
    Summary
    Plant volatiles play an important role in the lives of phytophagous insects, by guiding them to oviposition, feeding and mating sites. We tested the effects of different host-plant volatiles on attraction of Lobesia botrana males to the female-produced sex pheromone, in a wind tunnel. Addition of volatile emissions from grapevines or individual plant volatiles to pheromone increased the behavioral responses of L. botrana males over those to pheromone alone. At a low release rate (under-dosed) of pheromone, addition of (E)-β-caryophyllene, (Z)-3-hexenyl acetate, 1-hexanol, or 1-octen-3-ol increased all behavioral responses, from activation to pheromone source contact, while addition of (E)-4,8-dimethyl-1,3,7-nonatriene, (E)-β-farnesene, (Z)-3-hexenol, or methyl salicylate affected only the initial behavioral responses. Dose-response experiments suggested an optimal release ratio of 1:1000 (sex pheromone: host plant volatile). Our results highlight the role of plant volatiles in the sensory ecology of L. botrana