Bui. 684, U. S. Dept. of Agriculture. 



Plate II. 



Apples Affected with Bitter-Rot. 



Fig. 1. — An apple affected with bitter-rot and, just above it, a mummied apple of the 

 preceding season. Spores washed do\^'n from the mummy have infected the pre- 

 viously sound apple. Variety, Yellow Newtown. Greenwood, Va., 1916. 



Fig. 2. — Apples with the "peppered" appearance caused by many infections. These 

 small blisterlike spots were due to infection by spores coming directly from a bitter- 

 rot canker. Variety, Missouri. Bentonville, Ark., 1914. 



