STREET TREES. 43 



SUGGESTIONS. 



Do not prune evergreens, except hedges, un- Ever . 

 less the severed member is wanted out of the ereen*. 

 way. Evergreens do not sprout from cuts as do most de- 

 ciduous trees. 



Pruning may be done at the most convenient Time to 

 time unless the wound bleeds. As this is most P ruiie - 

 likely to occur in spring that season is the least advisable. 

 Fall or winter is usually best, for then the sap is least active 

 and the leaves do not obscure the tree framework. 



Do not remove a live limb unless it interferes with a better 

 one or otherwise fails to meet the form and health require- 

 ments of the tree. 



Interior pruning is often necessary in the maples, bass- 

 wood, and similar dense-crowned trees, because the foliage 

 develops beyond the power of the roots to satisfy it with 

 water. A treatment similar to that ordinarily Excess of 

 given fruit trees is advised. (See Figs. 17 foli se. 

 and 18.) 



The suckers or long shoots from adventitious buds, often 

 observed on elms, give them a peculiar beauty not found in 

 other common shade trees. Spare these instead of removing 

 them as is often done. 



Do not trust your tree work to the first man who comes 

 along, but seek a reputable worker. Xo chestnut tree can be 

 cured of the blight; a wound badly filled or 

 unnecessarily filled would be better left open 

 (Plate III) : and a tree that is sprayed care- 

 lessly or with wrong material will be benefited as much as, 

 and no more than, one that is butchered under a pretence of 

 being pruned. 



Tree owners are warned against men without credentials, 

 and those who have work of this kind to do are advised to 

 seek assistance from the local shade tree commission, or, if 

 help cannot be secured in that way, to apply to the Forest 

 Commission, to the State Entomologist or to the State Plant 

 Pathologist. 



