Emergence period of Black Hills beetles from ponderosa pine in the central Rocky Mountains
By: W.F. McCambridge
Contributors: Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.); United States. Forest Service
Series: Research note RM -- 32; Research note RM -- 32.
Publisher: Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1964
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Ponderosa pine; Mountain pine beetle; Diseases and pests
Notes: Caption title.

"December 1964."