Powdery scab (Spongospora subterranea) of potatoes
By: by I.E. Melhus
Series: Bulletin of the U.S. Department of Agriculture -- no. 82; Bulletin of the U.S. Department of Agriculture -- no. 82.
Publisher: U.S. Dept. of Agriculture
Published: 1914
Place of publication: Washington, D.C
Language: eng
Number of pages: 16
Subjects: Potatoes; Powdery scab; Diseases and pests
Notes: Caption title.

"April 6, 1914."

"Professional paper."