The Hessian fly in Oregon
By: L.P. Rockwood.
Contributors: Oregon State College. Agricultural Experiment Station.
Series: Station circular / Oregon State System of Higher Education, Agricultural Experiment Station, Oregon State Agricultural College -- 141.; Station circular (Oregon State College. Agricultural Experiment Station) -- 141.
Publisher: Oregon State System of Higher Education, Agricultural Experiment Station, Oregon State Agricultural College
Published: 1941
Place of publication: [Corvallis, Or.]
Language: eng
Subjects: Hessian flies -- Oregon.
Notes: Cover title.

"Cereal and Forage Insect Investigations, Bureau of Entomology and Plant Quarantine, U.S. Department of Agriculture, cooperating"--Cover.