GRAPE. 239 



The Munson Method of Training. 



The Munson trellis is referred to by its author, Professor 

 T. V. Munson, as the Three-Wire CanojJy Trellis and is a form 

 of the Kniffen system of pruning. It is described by its author 

 as follows: 



"The posts should be of some durable, strong wood. The 

 end posts of every row should be large and strong and be set 

 three and one-half or four feet in the ground and well tamped. 

 The intermediate posts, which may be much lighter than the 

 end posts, should be six and one-half or seven feet long and set 

 two to two and one-half feet in the ground, with twenty-four 

 foot spaces between posts, which will take three vines eight 

 feet apart or two vines twelve feet apart. After the posts are 

 set a three-eighths-inch hole should be bored though each, four 

 feet from the surface of the ground in the direction in which the 

 rows run, leaving six inches or more of post above the hole. 

 These holes are to admit the middle, lower wire of the trellis. 

 For each end post prepare a cross arm of 2x4 hard pine or oak, 

 two feet long; at one inch from either end, and one inch from the 

 upper side, bore a three-eighths of an inch bit hole to pass the 

 lateral wires through, and in the middle of the lower side saw 

 a notch one-half inch deep. For each intermediate post prepare 

 a board of similar wood and likewise bore and notch." 



"Through the holes in the posts run a No. 11 galvanized wire, 

 fasten at one end, tighten at the other end with a wire stretcher 

 and fasten. This will be the middle and lower wire of the 

 trellis, and all that will be needed the first year, when the young 

 vines are trained up a string tied from the vine to the wire and 

 along it. 



"The arms and the two lateral wires which they bear need 

 not be put on the trellis until after the vines are pruned and 

 tied the next winter. . 



"Each end cross arm is placed inside the post, and against 

 It, on top of the wire with notch side downward, straddling the 

 wire to keep it from sliding. Then take a piece of the ;same 

 size wire, about seven feet long, pass one end through the bit 

 hole in one end of arm and fasten the cross arm thoroughly in 

 place. The wire will hold the arm in place and not weaken or 

 split the arm as do nails or bolts, and will be longer lasting, 



