Impact of insects on seed production in a Douglas-fir seed orchard in Oregon
By: by Scott A. Dombrosky.
Published: 1986
Language: eng
Number of pages: 64
Subjects: Douglas fir -- Oregon -- Seeds.; Douglas fir -- Oregon -- Diseases and pests.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1987.

Bibliography: leaves 58-64.