Books by John W. Roberts:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Roberts, John W. (John William), 1882-: Apple bitter rot and its control (U.S. Dept. of Agriculture, 1935), also by Leslie Pierce (page images at HathiTrust)- Roberts, John W. (John William), 1882-: Apple blotch (U.S. Dept. of Agriculture, 1926), also by Leslie Pierce (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: Apple blotch and its control (U.S. Dept. of Agriculture, 1917) (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: Control of cherry leaf-spot (U.S. Dept. of Agriculture, 1919), also by Leslie Pierce (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: Control of peach bacterial spot in southern orchards (U.S. Dept. of Agriculture, 1917) (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: Peach brown rot (U.S. Dept. of Agriculture, 1932), also by John C. Dunegan (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: Peach brown rot and scab (U.S. Dept. of Agriculture, 1936), also by John C. Dunegan (page images at HathiTrust)
- Roberts, John W. (John William), 1882-: The sources of apple bitter-rot infections (U.S. Dept. of Agriculture, 1918) (page images at HathiTrust)
Find more by John W. Roberts at your library, or elsewhere.