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



Plate V. 



Apple Branches Showing Artificially Produced Bitter-Rot Cankers and 

 One Used as a Control. 



Figs. 1 and 2. — Branches showing bitter-rot cankers artificially produced. Inoculations 



made through slits September 14, 191-1. Removed and photographed May 27, 1915. 



Variety, Missouri. Bentonville, Ark. 

 Fig. 3. — A branch showing a control slit in the series of inoculations made September 14, 



1914. Removed and photographed May 27, 1915. "Variety, Missouri. Bentonville, Aik. 



For inoculated slits, see figures 1 and 2. 

 Figs. 4 and 5. — Branches showing bitter-rot cankers artificially produced. Inoculated 



through slits July 13, 1916. Removed and photographed January 9, 1917. Figure 4, 



variety, Winesap; figure 5, variety, Jonathan. Note the laige size of the cankers shown in 



figure 5. 



