Skip to Main Content
Attraction of bark beetle predator, Thanasimus undatulus (Coleoptera: Cleridae), to pheromones of the spruce beetle and two secondary bark beetles (Coleoptera: Scolytidae)Author(s): Therese M. Poland; John H. Borden
Source: Journal of Entomol Soc. Brit. Columbia. Vol. 94 no. 1.:p. 35-41. (1997)
Publication Series: Scientific Journal (JRNL)
Station: North Central Research Station
PDF: Download Publication (1.82 MB)
DescriptionThe bark beetle predator Thanasimus undatulus Say was captured in statistically significant numbers (total catch = 470, 713, and 137) in three field experiments using multiple-funnel traps baited with various combinations of pheromones for the spruce beetle, Dendroctonus rufipennis Kirby, and the secondary bark beetles Dryocoetes affaber Mannerheim, and lps tridens Mannerheim. Thanasimus undatulus was attracted to frontalin and -pinene, the commercial spruce beetle lure, alone or combined with the D. affaber pheromones (+)-endo- and (+_)-exo-brevicomio. Ips tridens pheromones,(+)- and (+)-ipsdienol, significantly increased the numbers of T. undatulus attracted to spruce beetle lures. Additional I. tridens pheromone components, (-)-cis-verbenol and amitinol, did not increase attraction to spruce beetle lures with added (+)-ipsdienol. Attraction to I. tridens pheromones indicates that baiting susceptible hosts with I. tridens pheromones to induce competitive exclusion of the spruce beetle may also lead to increased densities of the natural enemy, T. undatulus.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- 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.
CitationPoland, Therese M.; Borden, John H. 1997. Attraction of bark beetle predator, Thanasimus undatulus (Coleoptera: Cleridae), to pheromones of the spruce beetle and two secondary bark beetles (Coleoptera: Scolytidae). Journal of Entomol Soc. Brit. Columbia. Vol. 94 no. 1.:p. 35-41. (1997)
KeywordsThanasimus undatulus, Dendroctonus rufipennis, lps tridens, Dryocoetes affaber, ipsdienol, kairomone, predator, Princeton, British Columbia
- Competitive Exclusion of Dendroctonus rufipennis Induced by Pheromones of Ips tridens and Dryocoetes affaber (Coleoptera: Scolytidae)
- Disruption Of Secondary Attraction Of The Spruce Beetle, Dendroctonus rufipennis, By Pheromones Of Two Sympatric Spcies
- Use of semiochemicals of secondary bark beetles to disrupt spruce beetle attraction and survival in Alaska.
XML: View XML