Weather and tree growth associated with white fir mortality caused by fir engraver and roundheaded fir borer
By: George T. Ferrell, Ralph C. Hall.
Series: USDA Forest Service research paper PSW -- 109.
Publisher: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1975
Place of publication: Berkeley, Calif
Language: eng
Number of pages: 11
Subjects: Abies concolor -- Diseases and pests.; Scolytus ventralis.; Semanotus litigiosus.
Notes: Cover title.

Bibliography: p. 10-11.