than to plant it alone, except for windbreaks, shade, etc. It is useful 

 for underplanting in forests that are too open. In natural stands 

 reproduction is fairly good in moist situations, and when a plantation 

 is once established, it may be perpetuated, if skillfully managed, through 

 natural seeding. In groves developed for shade, the trees should stand 

 from 15 to 25 feet apart. 



In the Northern States considerable damage is often done the Box- 

 elder by drifting snow, which collects on the thick branches and upon 

 melting settles down and breaks them off. If insects appear and 

 threaten the existence of the Boxelder or any valuable tree species, 

 specimens should be promptly sent to the Division of Entomology, 

 where steps will be taken for their identification, and measures sug- 

 gested for their destruction or control. 



POSSIBILITIES. 



As a street and lawn tree the Boxelder is of undoubted value because 

 of its hardiness and attractive appearance. But where uniformity is 

 desired trees of the same age are apt to vary so much in form and rate 

 of growth as to make their use inadvisable. As a tree for western 

 planting, it has been very extensively used, and while fairly satisfactory 

 is inferior in many places to other trees, such as White Elm. For 

 underplanting, for wind-ahd-snow-breaks, for ornament, and as a nurse 

 tree, it should find some use over the whole region east of the Rockies. 



O 



