Decay in white fir top-killed by Douglas-fir tussock moth
By: Boyd E. Wickman, Robert F. Scharpf.
Contributors: Scharpf, Robert F., 1931-
Series: Research paper PNW -- 133.; Research paper PNW -- 133.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1972
Place of publication: Portland, Or
Language: eng
Subjects: Abies concolor -- Diseases and pests; Douglas-fir tussock moth
Notes: Cover title.

Includes bibliographical references.