Authors: Martin von Arx Daniela SchmidtBüsser Patrick M Guerin
Publish Date: 2012/02/10
Volume: 38, Issue: 2, Pages: 222-225
Abstract
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 hostplant volatiles on attraction of Lobesia botrana males to the femaleproduced 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 underdosed of pheromone addition of Eβcaryophyllene Z3hexenyl acetate 1hexanol or 1octen3ol increased all behavioral responses from activation to pheromone source contact while addition of E48dimethyl137nonatriene Eβfarnesene Z3hexenol or methyl salicylate affected only the initial behavioral responses Dose–response experiments suggested an optimal release ratio of 11000 sex pheromone host plant volatile Our results highlight the role of plant volatiles in the sensory ecology of L botrana
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