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  4. Plant Volatiles Enhance Behavioral Responses of Grapevine Moth Males, <i>Lobesia botrana</i> to Sex Pheromone
 
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Plant Volatiles Enhance Behavioral Responses of Grapevine Moth Males, <i>Lobesia botrana</i> to Sex Pheromone

Auteur(s)
Von Arx, Martin
Schmidt-Büsser, Daniela
Guerin, Patrick 
Institut de biologie 
In
Journal of Chemical Ecology, Springer, 2012/28/2/222-225
Mots-clés
  • Pheromone response
  • Kairomone .Wind tunnel
  • <i>Vitis vinifera</i>
  • European grapevine moth
  • Tortricidae
  • Lepidoptera
  • Pheromone response

  • Kairomone .Wind tunne...

  • <i>Vitis vinifera</i>...

  • European grapevine mo...

  • Tortricidae

  • Lepidoptera

Résumé
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 <i>Lobesia botrana</i> 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 behavioural responses of <i>L. botrana</i> males over those to pheromone alone. At a low release rate (under-dosed) of pheromone, addition of (<i>E</i>)-β-caryophyllene, (<i>Z</i>)-3-hexenyl acetate, 1-hexanol, or 1-octen-3-ol increased all behavioral responses, from activation to pheromone source contact, while addition of (<i>E</i>)-4,8-dimethyl-1,3,7-nonatriene, (<i>E</i>)-β-farnesene, (<i>Z</i>)-3-hexenol, or methyl salicylate affected only the initial behavioural 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 <i>L. botrana</i>.
Identifiants
https://libra.unine.ch/handle/123456789/8129
_
10.1007/s10886-012-0068-z
Type de publication
journal article
Dossier(s) à télécharger
 main article: von_Arx_M.-Plant_volatiles-20141212.pdf (541.72 KB)
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