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Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/1546

Title: Response of the beetle Hylastinus obscurus Marsham (Coleoptera : Scolytidae) to red clover (Trifolium pratense L.) volatiles in a laboratory olfactometer
Authors: Quiroz, A.
Ortega, F.
Ramirez, C.C.
Wadhams, L.J.
Pinilla, K.
Keywords: Scolytidae
Hylastinus obscurus
volatiles
olfactometry
laboratory walking behavior
Issue Date: Jun-2005
Publisher: The Entomological Society of America
Citation: Environmental Entomology 34 (3): 690-695
Abstract: The response of field-collected Hylastinus obscurus Marsham (Coleoptera: Scolytidae) to volatiles from Trifolium pratense L. of different ages was studied in a four-arm olfactometer. Volatiles from 1.5-, 2-, and 2.5-yr-old plants were more attractive than volatiles from 1-, 3-, and 3.5-yr-old plants. Two-year-old plants were preferred during winter, spring, and summer. One-year-old plants were not preferred in their early stages, but preference increased as they aged. Volatiles from 3-yr-old plants were never preferred. The essential oils obtained from 2-yr-old T pratense elicited an attraction response from H. obscurus. Beetle response is discussed in relation to host-locating behavior.
Description: Ramirez, C.C. Centro de Investigación en Biotecnología Silvoagropecuaria, Instituto de Biología Vegetal y Biotecnología. Universidad de Talca,Talca, Chile.
URI: http://dspace.utalca.cl/handle/1950/1546
ISSN: 0046-225X
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

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