Skip to Main Content
Electrophysiological and behavioral responses of Dendroctonus frontalis (Coleoptera: Curculionidae) to volatiles isolated from ConspecificsAuthor(s): Brian T. Sullivan
Source: J. Econ. Entomol. 98(6): 2067-2078
Publication Series: Miscellaneous Publication
PDF: View PDF (1.40 MB)
DescriptionOlfactory sensitivity of the southern pine beetle, Dendroctonus frontalis zimmermann, to compounds isolated from the mid/hindguts of newly emerged conspecific adults was assayed with coupled gas chromatography-electoantennographic detection. All previously reported pheromones for D. frontalis plus eight additional compounds (fenchyl alcohol, myrtenal, cis-verbenol, transpin ocarveol, acetophenone, trans-myrtanol, cis-myrtanol, and 2-phenylethanol) consistently elicited antennal responses from at least one sex. The eight additional compounds were assayed individually at three release rates (0.4-0.8, 3-6, and 25-100 mg/d) for the ability to alter D. frontalis reponses to traps baited with D. frontalis females, wereas the other seven compounds significantly reduced attraction of one or both sexes. Acetophenone significantly reduced attraction of male D. frontalis at the low release rate, and five compounds (fenechyl alcohol, trans-pinoearveol, acetophenone, cis-myrtanol, and 2-phenylethanol) reduced attraction of one or both sexes at the intermediate rate. Only acetophenone significantly altered the sex ratio of beetles trapped, decreasing the proportion of males. Attraction of predatory checkered beetles (Cleridae) was enhanced by cis-verbenol released at the high rate but was not altered by any compound inhibitory to D. frontalis. Analyses of volatiles from individual D. frontalis indicated that the majority of the eight compounds were produced in greater quantities by newly emerged beetles than ones attacking pine bolts. Five of the compounds were associated predominantly with one sex. Possible ecological roles of these compounds in the biology of D. frontalis are discussed.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationSullivan, Brian T. 2005. Electrophysiological and behavioral responses of Dendroctonus frontalis (Coleoptera: Curculionidae) to volatiles isolated from Conspecifics. J. Econ. Entomol. 98(6): 2067-2078
KeywordsScolytinae, semiochemical, pheromone, GC-EAD, repellent
- Repellent properties of the host compound 4-allylanisole to the southern pine beetle
- cis-Verbenol: An aggregation pheromone for the mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae)
- Pheromone interruption of pine engraver, Ips pini, by pheromones of mountain pine beetle, Dendroctonus ponderosae (Coleoptera: Scolytidae)
XML: View XML