Distribution and variation of Armillariella mellea clones in  relation to vegetative cover and severity of root rot in Ponderosa pine
By: by Sally Joan Cooley.
Published: 1979
Language: eng
Number of pages: 130
Subjects: Ponderosa pine -- Diseases and pests.; Root rots.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1980.

Includes bibliography.