Title: Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles
Author: Zhang, Long-wa; Gillette, Nancy E.; Sun, Jiang-hua.
Source: Ann. For. Sci. 64: 267–273
Description: Non-host volatiles (NHVs) that are often reported as being disruptive to coniferophagous bark beetles were tested for both electrophysiological and behavioral effects on the red turpentine beetle, Dendroctonus valens LeConte (Coleoptera: Curculionidae: Scolytinae), which was accidentally introduced into China in the mid-1980's. All NHVs tested elicited dose-dependent antennal responses by D. valens. In Y-tube olfactometer trials, D. valens were repelled by NHVs tested. When NHVs were added to a kairomone blend, responses of D. valens were significantly inhibited. Further field trapping experiments showed that attraction of D. valens to kairomone baited traps was reduced by all individual NHVs, with reductions ranging from 26.3 to 70%. 1-Octen-3-ol, (Z)-3-hexen-1-ol, and (E)-2-hexen-1-ol were the three most effective NHVs, significantly reducing D. valens to kairomonebaited traps by 69.5, 68.3 and 66.0%, respectively. In the development and implementation of a semiochemical-based management programme for D. valens, NHVs may have considerable potential for disrupting the beetle's ability to locate suitable hosts.
Keywords: non-host volatiles, red turpentine beetle, electroantennograms, olfactory response, field trapping
View and Print this Publication (381.49 KB)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Zhang, Long-wa; Gillette, Nancy E.; Sun, Jiang-hua. 2007. Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles. Ann. For. Sci. 64: 267–273.