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Combining 1,4-dimethoxybenzene, the major flower volatile of wild strawberry Fragaria vesca, with the aggregation pheromone of the strawberry blossom weevil Anthonomus rubi improves attraction
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. Univ Tartu, Inst Technol, Sect Organ Chem, Estonia.
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2014 (English)In: Crop Protection, ISSN 0261-2194, Vol. 64, 122-128 p.Article in journal (Refereed) Published
Abstract [en]

The aggregation pheromone of strawberry blossom weevil [Anthonomus rubi Herbst (Col.: Curculionidae)1, a 1:4:1 blend of Grandlure I, II and racemic lavadulol, has been available for pest monitoring for several years but shows low attractancy. Attempts to control A. rubi using the pheromone alone were also unsuccessful. This paper reports the finding that addition of the major flower volatile from wild strawberry flowers [Fragaria vesca L. (Rosaceae)], 1,4-dimethoxybenzene (comprising 98% of the volatiles emitted from wild strawberry flowers), to the aggregation pheromone increased trap catches by over two fold compared to the pheromone alone. There was no significant difference between the response of overwintered or summer emerged adults. Field trials in 2007-2008 in central and southern Norway, Denmark and southern England used green funnel traps with white cross vanes for the evaluations. (-)-Germacrene D, previously shown to be emitted by plants in increased amounts in the presence of pheromone producing weevils, did not improve trap catches. Thus, the combined use of the aggregation pheromone and 1,4-dimethoxybenzene is promising for improved monitoring and possibly control of this important pest of strawberry.

Place, publisher, year, edition, pages
2014. Vol. 64, 122-128 p.
Keyword [en]
Plant volatiles, Insect control, Synergy, (-)-Germacrene D
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URN: urn:nbn:se:kth:diva-153842DOI: 10.1016/j.cropro2014.06.016ISI: 000341470000017ScopusID: 2-s2.0-84903900958OAI: diva2:755014

QC 20141013

Available from: 2014-10-13 Created: 2014-10-09 Last updated: 2014-10-13Bibliographically approved

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Borg Karlsson, Anna-Karin
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