Apple scab
Subtitle: J. Fred Hockey
Contributors: Canada. Dept. of Agriculture
Series: Studies in fruit diseases -- 9; Publication / Dept. of Agriculture -- 519
Publisher: Department of Agriculture
Published: 1953
Place of publication: Ottawa
Language: eng
Subjects: Diseases and pests; Apple scab; Apples
Notes: "Publication 519".

At head of title : Studies in Fruit Diseases IX.

Cover title.