PRUNING TREES 



161 



from trees, as well as from human beings, must be done 

 sparingly and judiciously. Wounds, in both trees and 



FIG. 112. A Tree Pruned Improperly and too Severely. 



human beings, must be disinfected and dressed to keep out 

 all fungus or disease germs. Fungous growths of trees 

 are similar to human cancers, both in the manner of their 



