Spraying apple trees, with special reference to apple scab fungus Blair, Joseph Cullen, 1871-1940 creator text book Urbana, [Ill.] University of Illinois Agricultural Experiment Station 1899 1899
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ENG Caption title. Apple scab Apples Control Diseases and pests Bulletin (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station), no. 54 Bulletin (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station), no. 54 https://www.biodiversitylibrary.org/bibliography/45801 16857588 10.5962/bhl.title.45801 RQF