Pruning. 



259 



moving or cutting back the lower branches, and per- 

 mitting only a few branches to develop near the ter- 

 minus of the stem. 



425. Pruning for Den- 

 sity applies either to in- 

 creasing or decreasing the 

 density of the head. In 

 ornamental and shade 

 trees, a compact head is FIG. 159. Showing how to disbud 



shoots of some coniferous trees, 

 often desirable while in Picking out the terminal bud A 



in spring usually causes both the 

 fruit trees, a head that adjacent lateral buds to develop. 



admits abundant light and air (Fig. 162) is important 

 (242). To increase density, encourage lateral branch- 

 ing by pinching 

 all the more 

 prominent ter- 

 minal growing 

 points (Fig. 

 160). In some 

 coniferous trees, 

 as the Norway 

 -spruce,* disbud- 

 of the terminal shoots 

 (Fig. 159) in spring is advis- 

 able, and in woody plants too 

 FIQ. leo. showing how den- tall f or pinching, the more 



sity of growth is promoted 



(right-hand side) by persist- prominent terminal growing 



ent pinching of the terminal i 



growing points. points may be cut back with 



the pole shears (431), which causes the head to grow 

 more dense. 



