Balsam woolly aphid predators native to Oregon and Washington
By: Russel G. Mitchell.
Series: Technical bulletin -- 62.; Technical bulletin (Oregon State University. Agricultural Experiment Station) -- 62.
Publisher: Agricultural Experiment Station, Oregon State University
Published: 1962
Place of publication: Corvallis
Language: eng
Number of pages: 63
Subjects: Balsam woolly adelgid -- Predators of -- Oregon.; Balsam woolly adelgid -- Predators of -- Washington (State); Predatory insects -- Oregon.; Predatory insects -- Washington (State)
Notes: Cover title.

"May 1962."

Includes bibliographical references (p. 62-63).