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Record number 422403
Title Field attraction of the vine weevil Otiorhynchus sulcatus to Kairomones
Author(s) Tol, R.W.H.M. van; Bruck, D.J.; Griepink, F.C.; Kogel, W.J. de
Source Journal of Economic Entomology 105 (2012)1. - ISSN 0022-0493 - p. 169 - 175.
DOI https://doi.org/10.1603/EC11248
Department(s) PRI BIOINT Entomology & Virology
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) olfactory antennal responses - plant volatiles - host plants - fruit-fly - curculionidae - coleoptera - strawberry - oviposition - pheromone - varieties
Abstract Root weevils in the genus Otiorhynchus are cited as one of the most important pests in the major nursery and small fruit production areas throughout the United States, western Canada, and northern Europe. A major problem in combating weevil attack is monitoring and timing of control measures. Because of the night-activity of the adult weevils growers do not observe the emerging weevils in a timely manner and oviposition often starts before effective control measures are taken. Several vine weevil electroantennogram-active plant volatiles were identiÞed from a preferred host plant, Euonymus fortunei. Main compounds evoking antennal responses on the weevilsÕ antennae were (Z)-2-pentenol, (E)-2-hexenol, (Z)-3-hexenol, methyl benzoate, linalool, (E)-4,8-dimethyl-1,3,7- nonatriene, methyl eugenol, and (E, E)-_-farnesene. Several of these compounds were tested alone and in mixtures on attractiveness for the vine weevil Otiorhynchus sulcatus (F.) in Þeld-grown strawberry in Oregon. O. sulcatus were attracted to (Z)-2-pentenol (_3_ more than control) and a 1:1 ratio mixture of (Z)-2-pentenol and methyl eugenol (4.5_ more than control). This is the Þrst report of Þeld-active attractants for O. sulcatus which holds promise for the development of new monitoring strategies for growers in the near future
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