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Ponderosa pine mortality resulting from a mountain pine beetle outbreak

Author(s):

William F. McCambridge
Frank G. Hawksworth
Carleton B. Edminster
John G. Laut

Year:

1982

Publication type:

Research Paper (RP)

Primary Station(s):

Rocky Mountain Research Station

Historical Station(s):

Rocky Mountain Forest and Range Experiment Station

Source:

Res. Paper RM-RP-235. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 7 p.

Description

From 1965 to 1978, mountain pine beetles killed 25% of the pines taller than 4.5 feet in a study area in north-central Colorado. Average basal area was reduced from 92 to 58 square feet per acre. Mortality increased with tree diameter up to about 9 inches d.b.h. Larger trees appeared to be killed at random. Mortality was directly related to number of trees per acre and presence of dwarf mistletoe, but not to site index, elevation, and percent Douglas-fir in the stand.

Citation

McCambridge, William F.; Hawksworth, Frank G.; Edminster, Carleton B.; Laut, John G. 1982. Ponderosa pine mortality resulting from a mountain pine beetle outbreak. Res. Paper RM-RP-235. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 7 p.

Cited

Publication Notes

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
https://www.fs.usda.gov/treesearch/pubs/30385