BUSH FRUIT PRUNING 



285 



such conditions a wire trellis will save sufficient fruit to 

 make it a profitable investment. Such a trellis consists of 

 posts set in each row at intervals of 15 to 30 feet; the 

 canes are tied to a wire stretched along this line about 

 '^Yi feet above ground. This keeps the canes upright 

 and facilitates cultivation and picking. (Figure 248 shows 

 this and otherpopular forms of trellises. SeealsoFig.2J:7.) 

 Another satisfactory form of trellis is made as follows: 

 Crosspieces about 18 inches long are nailed to the top 

 of each post and two wires instead of one are stretched 

 from the ends of the crosspieces. The blackberry canes 



2 J^\— . "jg^y.* 



FIG. 243— BLACK RASPBERRY AFTER PRUNING. COMPARE WITH FIG. 242, 



are kept inside these wires, which support them on 

 either side. 



These systems of training are adapted to certain varie- 

 ties and to those sections of the country where the bushes 

 do not grow very high. When the canes grow very long 

 or are inclined to run somewhat like a grapevine, a much 

 higher trellis is used, with two wires (Figs. 1\lh, 248-1), 

 one about 3 feet, the other about 5 feet from the ground 

 the height depending upon the vigor of the plants (Fig. 

 244). The canes of the erect varieties are fastened to 



