I posted some pictures a couple weeks ago of my 2 grape plants that apparently had the leaves frozen off... even though I covered them. I live in Michigan. One plant the concord has sprouted a new little shoot/leaf the Niagara still has no new growth. I am pretty sure the Niagara is still alive because it still has some green on the branches. I have attached some pictures. My question is now that the Concord has new growth should I prune back all the dead branches or just do nothing?