The relative impact of single vs. multiple agents on the biological control of Tansy ragwort (Senecio jacobaea)
By: by Rosalind R. James.
Published: 1989
Language: eng
Number of pages: 67
Subjects: Arctiidae.; Flea-beetles.; Senecio -- Biological control.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1989.

Includes bibliographical references.