My Grapevine is about 6 years old. I did not prune it for the first 3 or four years and then took courage in hand and took the previous years growth back to 2 or three buds. Great I got some grapes. Did the same this year and only have about four sparse bunches of grapes but the new growth is fantastic. Some of the leaves are turning yellow but the few grapes still look ok. My problem is how do I get more grapes and what do I do about this growth which on some shoots is over 20 feet. Can I or should I prune it back now. I am living in Turkey and the temperature at this time is around 40C. Thank you. Jill
