Black spot of onion sets
By: by Frank Lincoln Stevens and Esther Young True.
Contributors: True, Esther Young, 1893-
Series: Bulletin (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) -- no. 220; Bulletin (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) -- no. 220.
Publisher: University of Illinois Agricultural Experiment Station
Published: 1919
Place of publication: Urbana, Ill
Language: eng
Number of pages: 532
Subjects: Onions -- Diseases and pests