Pink root of onion caused by Pyrenochaeta terrestris
By: by Wildord Moser Hess.
Published: 1962
Language: eng
Number of pages: 72
Subjects: Pink-root disease.; Onions -- Diseases and pests.; Pyrenochaeta terrestris.
Notes: Typescript.

Thesis (Ph. D.)--Oregon State University, 1962.

Bibliography: leaves 69-72.