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.
How to translate text using browser tools
1 June 2005
Response of the Beetle Hylastinus obscurus Marsham (Coleoptera: Scolytidae) to Red Clover (Trifolium pratense L.) Volatiles in a Laboratory Olfactometer
Andrés Quiroz,
Fernando Ortega,
Claudio C. Ramírez,
L. J. Wadhams,
Karina Pinilla
ACCESS THE FULL ARTICLE
It is not available for individual sale.
This article is only available to subscribers.
It is not available for individual sale.
It is not available for individual sale.
Hylastinus obscurus
laboratory walking behavior
olfactometry
Scolytidae
volatiles