Potato scab-gnat, pnyxia scabiei(Hopkins)
Gui, Harry L.
Potato scab-gnat, pnyxia scabiei(Hopkins) - Wooster 1933 - 1-21 p. - Potato Ohio Agricultural Experiment Station. Bulletin No. 524 .
Potato scab-gnat, pnyxia scabiei(Hopkins) - Wooster 1933 - 1-21 p. - Potato Ohio Agricultural Experiment Station. Bulletin No. 524 .