Well there are two vines in the polytunnel we inhereted. Didn't do too well last year, I left too many bunches I think, well that and the hornets finding them. There's nothing like the sound of a hornet to make me want to get out of there.This year I am removing all but one bunch per branch and will see what that does, and putting insect netting on the doors when the strawberries are finished, they have just started and are delicious.
Does anyone have experience of grape thinning, I belive I should thin the actual grapes but with my eyesight it seems like a recipe for disaster.