Bul. 684, U.S. Dept. of Agriculture. PLATE V. 
APPLE BRANCHES SHOWING ARTIFICIALLY PRODUCED BITTER-ROT CANKERS AND 
ONE USED AS A CONTROL. 
Fias. 1 and 2.—Branches showing bitter-rot cankers artificially produced. Inoculations 
made through slits September 14, 1914. 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, Ark. 
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 large size of the cankers shown in 
figure 5. 
Sy 
