Skip to Main Content
Efficacy of spring and fall treatments of carbaryl for protecting ponderosa pine from mortality attributed to mountain pine beetle (Coleoptera: Curculionidae)Author(s): Christopher Fettig; Laura Lowrey; Darren Blackford; Joel McMillin; A Steven Munson; Leif A. Mortenson
Source: Journal of Economic Entomology. 111(6): 2979-2982
Publication Series: Scientific Journal (JRNL)
Station: Pacific Southwest Research Station
Download Publication (111.0 KB)
DescriptionHigh-value trees, such as those growing in residential, recreational, or administrative sites, are often susceptible to colonization by bark beetles (Coleoptera: Curculionidae: Scolytinae) as a result of increased amounts of stress associated with off-site plantings, drought, soil compaction, and/or mechanical injury. The value of these trees, cost of removing dead trees, and loss of aesthetics often justify the use of insecticides to protect trees from mortality attributed to bark beetles. Carbaryl (1-naphthyl methylcarbamate) is among the most effective, economically-viable, and ecologically-compatible insecticides available for protecting conifers from several species of bark beetles in the western United States. Treatments are usually applied in spring prior to initiation of flight of the target species. We evaluated the efficacy of spring and fall applications of carbaryl for protecting individual ponderosa pine, Pinus ponderosa Dougl. ex Laws. (Pinales: Pinaceae), from mortality attributed to mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), in Idaho. Both spring and fall treatments of 2.0% a.i. carbaryl (maximum label rate; Sevin SL, Bayer Environmental Science, Montvale, NJ 07645) provided one field season of protection, and thus should be applied annually if tree protection is desired for multiple years. Our research also provides some insight on the efficacy of carbaryl treatments after wildfire. We found no evidence that a mixed-severity wildfire negatively affected the efficacy of carbaryl treatments.
- 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.
CitationFettig, Christopher J; Lowrey, Laura L; Blackford, Darren C; McMillin, Joel D; Munson, A Steven; Mortenson, Leif A. 2018. Efficacy of spring and fall treatments of carbaryl for protecting ponderosa pine from mortality attributed to mountain pine beetle (Coleoptera: Curculionidae). Journal of Economic Entomology. 111(6): 2979-2982. https://doi.org/10.1093/jee/toy259.
Keywordsbole spray, insecticide, Pinus ponderosa, tree protection
- Bark beetle-caused mortality in a drought-affected ponderosa pine landscape in Arizona, USA
- Presence of carbaryl in the smoke of treated lodgepole and ponderosa pine bark
- Bugs in the system: development of tools to minimize ponderosa pine losses from western pine beetle infestations
XML: View XML