A three year evaluation of Douglas-fir cone and seed insects in Montana and Yellowstone National Park
By: [by Jerald E. Dewey].
Contributors: United States. Forest Service. Northern Region. State & Private Forestry.
Series: Report -- no. 72-1.; Report (United States. Forest Service. Northern Region) -- no. 72-1.
Publisher: U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region
Published: 1972
Place of publication: Missoula, Mont
Language: eng
Number of pages: 19
Subjects: Douglas fir -- Diseases and pests -- Yellowstone National Park.; Douglas fir -- Diseases and pests -- Montana.; Douglas fir -- Seeds -- Yellowstone National Park.; Douglas fir -- Seeds -- Montana.; Western spruce budworm -- Yellowstone National Park.; Western spruce budworm -- Montana.; Yellowstone National Park.
Notes: Cover title.

"Feb. 1972."

Includes bibliographical references (p. 19).

Also issued online.