potato scab-gnat, Pnyxia scabiei (Hopkins)
By: Harry L. Gui
Series: Bulletin / Ohio Agricultural Experiment Station -- no. 524; Bulletin (Ohio Agricultural Experiment Station) -- no. 524
Publisher: Ohio Agricultural Experiment Station
Published: 1933
Place of publication: Wooster, Ohio
Language: eng
Number of pages: 21
Subjects: Potatoes -- Diseases and pests
Notes: Cover title

Bibliography: p. 21