Douglas fir pitch moth
By: by Josef Brunner
Series: Bulletin / United States Department of Agriculture -- no. 255; Bulletin of the U.S. Department of Agriculture -- no. 255.
Publisher: U.S. Dept. of Agriculture
Published: 1915
Place of publication: Washington, D.C
Language: eng
Number of pages: 23
Subjects: Douglas fir; Diseases and pests; Douglas fir pitch moth
Description: And conclusions. pp. 21.
Notes: Caption title.

"July 22, 1915."

"Professional paper."

Bibliography: p. 23.