Bark beetle risk in mature ponderosa pine forests in western Montana /
Philip C. Johnson.

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Main Author
Johnson, Philip C. (Philip Cornwell), 1907-
Related Names
Intermountain Forest and Range Experiment Station (Ogden, Utah)
Language(s)
English
Published
Ogden, Utah : Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1972.
Subjects
Bark beetles > Montana.
Ponderosa pine > Diseases and pests > Montana.
Physical Description
32 p. : ill. ; 27 cm.
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