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Using pheromones to protect heat-injured lodgepole pine from mountain pine beetle infestationAuthor(s): Gene D. Amman; Kevin C. Ryan
Source: Research Note INT-419. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 7 p.
Publication Series: Research Note (RN)
Station: Intermountain Forest Experiment Station
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DescriptionThe bark beetle antiaggregative pheromones, verbenone and ipsdienol, were tested in protecting heat-injured lodgepole pine (Pinus contorta Dougl. ex Loud.) from mountain pine beetle (Dendroctonus ponderosae Hopkins) infestation in the Sawtooth National Recreation Area in central Idaho. Peat moss was placed around 70 percent of the basal circumference of lodgepole pines. When the peat moss was ignited, it simulated the smoldering of natural duff, generating temperatures that killed the cambium. The four treatments tested were uninjured tree, heat-injured tree, heat-injured tree treated with verbenone, and heat-injured tree treated with verbenone plus ipsdienol. Treatments were replicated 20 times. Mountain pine beetles were attracted into treatment blocks by placing mountain pine beetle tree baits on metal posts 3 to 5 meters from treated trees. Fisher's Exact Test showed that treatment and beetle infestation were not independent (P < 0.015). Check treatments contained more unattacked and mass-attacked trees, whereas pheromone treatments contained more unsuccessfully attacked trees. Ipsdienol did not increase verbenone's efficacy in protecting trees.
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CitationAmman, Gene D.; Ryan, Kevin C. 1994. Using pheromones to protect heat-injured lodgepole pine from mountain pine beetle infestation. Res. Note INT-RN-419. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 7 p.
KeywordsDendroctonus ponderosae, Pinus contorta, verbenone, ipsdienol
- Population densities and tree diameter effects associated with verbenone treatments to reduce mountain pine beetle-caused mortality of lodgepole pine
- Five-year operational trial of verbenone to deter mountain pine beetle (Dendroctonus ponderosae); Coleoptera: Scolytidae) attack of lodgepole pine (Pinus contorta).
- A novel semiochemical tool for protecting Pinus contorta from mortality attributed to Dendroctonus ponderosae (Coleoptera: Curculionidae)
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