The Proper Way to Frtme Grape Vines 181 



this, rub oif all weak shoots and remove small bunches 

 of grapes to concentrate the strength of the vine into the 

 strong shoots and larger bunches. There will usually be 



r-'rr- » ' >- -*■ — "--tgr — 



Fig. 18. Four-arm spur system, pruned. 



three bunches of grapes upon each strong shoot. In 

 November, cut back or " spur " all of the shoots from the 

 two canes on the lower wire to one or two ej^es, and 

 shorten those on the upper wire to the same length as 

 the canes trained on the lower. This treatment maj' be 

 repeated annually until the spurs on the canes become 

 too long, when one of these may be cut out each year, 

 leaving a strong new cane to take its place. Thus in 



