The European horse-radish webworm
By: by F.H. Chittenden
Series: Bulletin / United States Department of Agriculture -- no. 966; Bulletin of the U.S. Department of Agriculture -- no. 966.
Publisher: U.S. Dept. of Agriculture
Published: 1921
Place of publication: Washington, D.C
Language: eng
Number of pages: 10
Subjects: Horse-radish; Diseases and pests; Horse-radish web-worm
Other titles: European horse radish webworm.
Notes: Caption title.

"August 25, 1921."

"Professional paper."

Bibliography: p. 10.