274 



PRUNING. 



point is the trellis. The form of this will depend on the 

 situation it is to occupy, and the mode of training to be 

 adopted. Fig. 132 represents one intended for a wall. 

 The principal bars or frame- work are inch-and-a-half 

 boards, three inches wide, nailed together at the angles. 



It is intended for one vine, and may be the hight of 

 the wall that it is intended to occupy. The vertical or 

 upright bars are three feet apart and the cross ones six 

 feet ; between them are rods of stout wire. The first or 

 lowest cross-bar may be two feet from the ground. It is 



Fig. 132. TRELLIS FOB A SINGLE VINE. 



fastened to the wall by iron hooks or brackets. The best 

 and simplest mode of training a vine on such a trellis as 

 this, is to produce two main branches or arms to be 

 trained in a horizontal manner on the first cross-bar. 

 From these two arms, permanent upright canes are 

 trained, one to each of the upright bars of the trellis. 

 These upright canes produce on their sides a succession 

 of bearing shoots from year to year, being pruned after 

 what is called the *' spur " system. 



The trellis may also be made entirely of wires, using 

 strong half-inch rods for the main uprights and cross-bars, 



