Sprouting Vine shoots, shouid I prune ?

[dugit]

My two vines I planted three years ago are sprouting some very long shoots now end of May, is it ok for me to cut them back or should I leave them both alone?. They are on a south facing fence and I live in south east England.

[mikew1972]

Vine applies to a whole group of plants as does 'tree' or 'shrub'.
What kind have you got?

[dugit]

I have two sorts of vine: a) Flame red and b) Lakemont green.

[wine~o]

Are we talking "Vinis vitefera" (Grape Vine) or not ?? coz I don't recognise those as grape vines ??

[dugit]

I now have my answer as follows: "During the growing season any sub-laterals that flower and set fruit should be pruned back to two leaves beyond the bunch of grapes, non fruiting sub-laterals should be pruned back to five leaves from the lateral".
Thank you for your reply

[wine~o]

Right so they are grape vines...

RHS give great advice on how/when to prune and how to train..

https://www.rhs.org.uk/advice/profile?pid=284