Is it true that when growing a grape vine that you cut off the vines that are not produceing grapes?

Question:is it true that by cuting off the vines that are not produceing help take the stress off vine that are produceing?

Answers:
Yes it is. Grape vines are always pruned. Actually, shorter than you may think. This makes for stronger vines and sweeter grapes. Along with grape being larger. You may want to look at some book about growing grape vines. Or, if you are in an area where they have vineyards, go look at those, they are usually kept short, about 5 feet high and the vines are kept about as wide as the vine is tall. They need support also. Usually some type of metal wire rails inbetween the wood poles. Good luck and remember, pruning is not going to hurt your vines, the good thing about grapes, they come back every year. Have fun.