Skip to Main Content
Mountain pine beetle infestations in relation to lodgepole pine diametersAuthor(s): Walter E. Cole; Gene D. Amman
Source: Res. Note INT-RN-95. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 7 p.
Publication Series: Research Note (RN)
Station: Intermountain Forest Experiment Station
PDF: Download Publication (211.0 KB)
DescriptionTree losses resulting from infestation by the mountain pine beetle (Dendroctonus ponderosae Hopkins) were measured in two stands of lodgepole pine (Pinus contorta Dougl.) where the beetle population had previously been epidemic. Measurement data showed that larger diameter trees were infested and killed first. Tree losses ranged from 1 percent of trees 4 inches (d.b.h.) to 87 percent of those 16 inches and greater d.b.h. Numbers of adult beetle emergence holes averaged 1.3 per square foot of bark area in trees 7 inches d.b.h. and 62 in trees 28 inches and greater d.b.h. The observations indicate that large infestations of mountain pine beetle depend on the presence of large diameter trees within a stand of lodgepole pine, thus implying that beetle population growth is food-limited.
- 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.
CitationCole, Walter E.; Amman, Gene D. 1969. Mountain pine beetle infestations in relation to lodgepole pine diameters. Res. Note INT-RN-95. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 7 p.
KeywordsMountain pine beetle, infestations, lodgepole pine diameters, Dendroctonus ponderosae, Pinus contorta
- Probability of infestation and extent of mortality models for mountain pine beetle in lodgepole pine forests in Colorado
- Population densities and tree diameter effects associated with verbenone treatments to reduce mountain pine beetle-caused mortality of lodgepole pine
- Post-harvest seedling recruitment following mountain pine beetle infestation of Colorado lodgepole pine stands: A comparison using historic survey records
XML: View XML