Skip to Main Content
Trapping western pine beetles with baited toxic treesAuthor(s): Richard H. Smith
Source: Res. Note PSW-RN-382. Berkeley, CA: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture. 9 p
Publication Series: Research Note (RN)
Station: Pacific Southwest Research Station
View PDF (906 KB)
DescriptionBaited toxic trap trees—trunks of living trees sprayed with an insecticide and then baited with an attractive substance—were tested in California to kill western pine beetles attacking ponderosa pine. The attractant was the triplet pheromone mixture of brevicomin, frontalin, and myrcene. Insecticides were lindane, Sevin, permethrin, and deltamethrin. All insecticides were effective at certain concentrations in killing beetles at the baited tree. Adjacent nonbaited trees were often attacked, but such trees were effectively protected with both preattack and postattack sprays. Numbers of beetles killed at active baited toxic trap trees for a full season varied widely between localities, years, and treatments, ranging from about 100 to over 550 per square foot (0.093 m²) of bark surface. Sex ratio of killed beetles was about 1:1, and no unusual effects of treatments on predators and other insects were noted. There was some indication that trapping may have reduced subsequent beetle activity in the area. Comparative studies with mountain and Jeffrey pine beetle suggest that the insecticides are probably effective against them but that the currently recommended attractants are not.
- You may send email to firstname.lastname@example.org 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.
CitationSmith, Richard H. 1985. Trapping western pine beetles with baited toxic trees. Res. Note PSW-RN-382. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 9 p.
Keywordsponderosa pine, pheromones, trap tree, lindane, Sevin, deltamethrin, permethrin
- Bugs in the system: development of tools to minimize ponderosa pine losses from western pine beetle infestations
- Responses of Dendroctonus brevicomis (Coleoptera: Curculionidae) in behavioral assays: Implications to development of a semiochemical-based tool for tree protection
- Testing Verbenone for reducing mountain pine beetle attacks in ponderosa pine in the Black Hills, South Dakota
XML: View XML