Interrelationships of Meloidogyne hapla Chitwood, 1949 with Heterodera schachtii Schmidt, 1871 on Beta vulgaris L.
By: by Parviz Jatala.
Published: 1972
Language: eng
Number of pages: 91
Subjects: Beets -- Diseases and pests.
Notes: Typescript (photocopy).

Thesis (Ph. D.)--Oregon State University, 1972.

Includes bibliography.