116 Nebraska Agricultural Exp. Station, Research Bui. 12 
DESCRIPTION OF PLATE XXIV 
Methods of treating canker. 
A. Cankered limbs were removed but, as shown at points 1 and 
2, all the v/ood except that formed during the last year was infected. 
The next year cankers appeared on the remaining limbs. 
B. Cankered limb removed but the canker is spreading up and 
down the trunk, 
C. Nearly half of the bark and a portion of the wood was 
removed for a distance of nearly six feet, and the wound covered. This 
is a useless expenditure of time and money. 
D. A cankered limb was removed and an attempt made to re- 
move all infected wood. It was found impossible to remove all of 
the diseased wood. Two years after treating canker appeared at 1 
and 2. 
