50 



BULLETIN 816, U. S. DEPARTMENT OF AGRICULTURE. 



and the loosened roots as about the roots of trees without balls. 

 Trees planted with balls need no root pruning and little top pruning. 



PRUNING. 



At planting time the trees should be so pruned as to remove from 

 one-half to three-fourths of the leaf buds. The head should be 

 formed in the nursery, so that at planting time the only problem is 

 how to reduce the amount of prospective growth the first season 



--B-C.s.- 



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Fig. 34. — A pin oak trimmed for planting. 

 Note tlie bad stubs (A, ^1) on the left-hand 

 side of the tree. 



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Fig. 35. — A sycamore trimmed for planting. Well 

 prmied, without bad stubs. 



without destroying the form of the head. Specific directions are 

 difficult, because different species of trees are so different in their 

 character of growth. A species that is naturally compact in growth 

 (fig. 34) should be pruned by removing whole branches rather than 

 by having the ends of branches removed. One that is open and 

 spreading (fig. 35) will probably need the shortening of the longer 

 limbs as well as the removal of interior branches. The first pruning 



