Four aphids injurious to the apple
By: by B.S. Pickett
Series: Circular / University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station -- no. 179; Circular (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) -- no. 179.
Publisher: University of Illinois Agricultural Experiment Station
Published: 1915
Place of publication: Urbana, Ill
Language: eng
Subjects: Aphids; Apples; Diseases and pests
Notes: Caption title.