How to identify brooms in Douglas-fir caused by dwarf mistletoe
By: Robert O. Tinnin and Donald M. Knutson.
Contributors: Knutson, Donald M.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research note PNW -- 426.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1985
Place of publication: [Portland, Or.?]
Language: eng
Subjects: Douglas fir -- Diseases and pests.; Dwarf mistletoes.
Notes: Caption title.

Distributed to depository libraries in microfiche.

"May 1985."

Bibliography: p. 8.