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Control of apple powdery mildew
- Fisher, D. F.
- Farmers' bulletin / United States Department of Agriculture ; no. 1120 1920
- Apple powdery mildew, Apples -- Diseases and pests, fungal diseases of plants, powdery mildew, mildews, cultural control, pruning, spraying, sulfur, liming materials, copper carbonate, saponins, casein, and sulfates
- 14 p. : ill. ; 23 cm.
- U.S. Dept. of Agriculture
- Organic Roots Collection