Identifying ponderosa pines infested with mountain pine beetles
By: William F. McCambridge.
Contributors: Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Series: USDA Forest Service research note RM -- 273.
Publisher: Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1974
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Ponderosa pine -- Diseases and pests.; Mountain pine beetle -- Control.
Notes: Caption title.

"December 1974."

Also issued online.