Why have my grape vine shrivelled up? Living in uk, 2nd year poss 3rd of the vine - never...

Living in uk, 2nd year poss 3rd of the vine - never pruned it back seem a shame but this year after produce green leaves and small bunches of grapes it went brown and shrivelled with individual a few green leaves left. It is in a tub but drastically large - should i plant in within the garden and cut right back - it's to grow over a pergola over a fish pond.
Answers:    If you were watering it properly and feed it (especially if it was in a container) afterwards it may have been struck by a disease.

This relation has some helpful counsel:

http://www.gardenadvice.co.uk/howto/frui...