FIGURE 1.—Blight of pear twig. 
CONTROL 
The most important control measure is the 
removal of the holdover blight. During the late 
summer the trees should be gone over at least 
once and all blighted twigs cut out, the cut being 
made through healthy wood well below the 
blighted part. Special care should be taken to 
detect and cut out blighted areas on large limbs, 
trunks, and collars, the cuts being run into 
healthy tissues and down into the roots, if nec- 
essary. The trees should be reinspected in the 
fall or winter after the leaves are off, and all 
holdover areas that were previously missed 
should be removed. Another inspection in 
early spring is desirable. After every cutting 
operation the cut surfaces and tools should be 
sterilized with corrosive sublimate, 1 part to 
1,000 parts of water, or with Reimer’s solution, 
consisting of 1 ounce of corrosive sublimate and 
