Plate II. 



I 



^ 



3^ 



*4 

 m 



m 







CITRUS CANKER ENLARGED. 



1. Young canker on lower surface of grapefruit leaf. 2. Upper surface of same leaf. 

 :i. Mature canker on upper surface of grapefruit leaf. i. Lower surface of same leaf. 

 All enlarged three diameters. Collected in South Dade County, Florida. (Courtesy Florida 

 Plant Board, i 



