Blight of pears, apples, and quinces.
By: [prepared by Plant Genetics and Germplasm Institute, Northeastern Region, Agricultural Research Service].
Contributors: United States. Agricultural Research Service.
Edition: [Rev. Feb. 1972, slightly rev. June 1976.]
Series: Leaflet - Dept. of Agriculture ; no. 187; Leaflet (United States. Dept. of Agriculture) -- no. 187.
Publisher: U.S. Dept. of Agriculture, [Agricultural Research Service, Northeastern Region, Plant Genetics and Germplasm Institute] : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1976
Place of publication: [Washington]
Language: eng
Subjects: Apples -- United States -- Diseases and pests.; Fire-blight.; Pear -- Diseases and pests.; Quince -- Diseases and pests.