Mountain pine beetle impact survey on the Ninemile District, Lolo National Forest, and surrounding state and private lands
By: W.E. Bousfield, M.D. McGregor, and Steve Kohler.
Contributors: McGregor, Mark D.; Kohler, Steve.; United States. Forest Service. Northern Region. State & Private Forestry.
Series: Insect disease report; Report / Forest Service, Northern Region, Division of State and Private Forestry -- no. 73-7.; Report (United States. Forest Service. Northern Region) -- no. 73-7.
Publisher: U.S. Forest Service, Northern Region, Division of State and Private Forestry
Published: 1973
Place of publication: Missoula, Mont
Language: eng
Subjects: Mountain pine beetle -- Montana -- Lolo National Forest.
Description: The mountain pine beetle, Dendroetonus ponderosae Hopk., has been at epidemic levels in second-growth ponderosa pine stands in the Ninemile area of the Lolo National Forest and surrounding private lands since 1969. An impact survey, using two levels of photography and a small ground sample, was conducted to estimate a loss of 592,469 board feet IP of ponderosa pine on 2,592 acres of infested land. The infestation is expected to continue at about the same level in 1973.
Notes: Caption title.

"March 1973."

Also issued online.