Effect of thinning second-growth ponderosa pine on incidence of mountain pine beetle infestation
Subtitle: establishment report
By: by Mark D. McGregor.
Contributors: United States. Forest Service. Northern Region. State & Private Forestry.
Series: Insect disease report; Report -- no. I-72-3.; Report (United States. Forest Service. Northern Region) -- no. I-72-3.
Publisher: USDA Forest Service, Northern Region
Published: 1972
Place of publication: Missoula, Mont
Language: eng
Subjects: Mountain pine beetle -- Montana -- Lolo National Forest.; Ponderosa pine -- Thinning -- Montana -- Lolo National Forest.; Ponderosa pine -- Diseases and pests -- Montana -- Lolo National Forest.
Notes: Caption title.

"May 1972."

Also issued online.