Three species of apple plant lice in Oregon
By: by H.F. Wilson.
Contributors: Oregon Agricultural College. Experiment Station.
Series: Crop pest series -- no. 2.; Circular bulletin / Oregon Agricultural College and Experiment Station -- no. 12.; Circular bulletin (Oregon Agricultural College. Experiment Station) -- no. 12.
Publisher: Oregon Agricultural College and Experiment Station
Published: 1909
Place of publication: [Corvallis, Or.]
Language: eng
Subjects: Apple -- Diseases and pests -- Oregon.; Aphididae -- Oregon.
Notes: Cover title.