Distribution of bark beetle attacks on ponderosa pine trees in Montana
By: Philip C. Johnson.
Contributors: Intermountain Forest and Range Experiment Station (Ogden, Utah)
Series: USDA Forest Service research note INT -- 62.; Research note INT -- 62.
Publisher: U.S. Dept. of Agriculture, Forest Service, Intermountain Forest & Range Experiment Station
Published: 1967
Place of publication: Ogden, Utah
Language: eng
Subjects: Bark beetles; Ponderosa pine -- Diseases and pests -- Montana
Notes: Caption title.

Includes bibliographical references.