Misc. Pub. No. 168. U.S. Dept. oJ Agriculture 



PLATE 4 



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Apple Diseases 

 A, Phytophthora rot on Grimes Golden; B, Phytophthora rot on Grimes Golden (note indefinite edge of 

 lesion); C, blotch on Oldenburg; D, cedar rust on Rome Beauty; E, cedar rust on York Imperial; F, 

 quince rust on York Imperial ; very little injury apparent on the outside. 



