Bark beetle risk in mature ponderosa pine forests in western Montana
By: Philip C. Johnson.
Contributors: Intermountain Forest and Range Experiment Station (Ogden, Utah)
Series: USDA Forest Service research paper INT -- 119.
Publisher: Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1972
Place of publication: Ogden, Utah
Language: eng
Number of pages: 32
Subjects: Bark beetles -- Montana.; Ponderosa pine -- Diseases and pests -- Montana.
Notes: Bibliography: p. 31-32.