Roberts, John W. (John William) and Pierce, Leslie.
Farmers' bulletin (United States. Dept. of Agriculture) ; no. 1479
Apple blotch; Apples; Diseases and pests; life cycle (organisms); apples; orchards; fruit trees; plant diseases and disorders; fungal diseases of plants; leaf blotch; spraying; varietal resistance; sulfur; copper sulfate
Farmers' bulletin (United States. Department of Agriculture) ; no. 1410
Brown rot of fruit; Control; stone fruits; orchards; application timing; sulfur; plowing; fungal diseases of plants; plant rots; brown-rot fungi; control methods; spaying; preharvest treatment; pruning; fruit crops