Fir tree borer
By: by Boyd E. Wickman.
Publisher: U.S. Govt. Print. Off.]
Published: 1968
Place of publication: [Washington
Language: eng
Subjects: Semanotus litigiosus.; Fir -- Diseases and pests.; Fir -- Pests.; Semanotus litigiosus.
Notes: Bibliography: p. 5.
Caption title.