I have a friend that has old muscadine vines on 3 trellises. They probably have never been pruned, but the still produce lots of clusters. It is a tangled mess. What is the best way to prune these back to help the grape quality?
It’s a little late to be pruning this year if the vines are already budding out. If it were me, since there are three trellises, I would pick one trellis and prune it way back this year. Watch the ISON videos for an idea of how a vine should be pruned.
I would leave the other two unpruned so that they could go ahead and produce what fruit they will this season. Next spring I would pick a second vine and prune it way back and also prune the vine I started with this year. It shouldn’t take a lot to get it pruned since it was pruned heavily the first year. Next spring the newly pruned vine will probably not produce any fruit, but you will only lose 1/3 of your normal production.
Two springs from now I would prune the last vine way back and lightly prune the previously pruned vines.
Probably the increased production on the first pruned vine will make up for and surpass any loss from the second vine not producing the first year after it’s pruned.
You also need to fertilize the vines and decide how to water them, (drip irrigation), during the season. Getting the correct amount of water in the growing season is really important for a good muscadine fruit crop. Also, don’t worry about the vines bleeding where they are pruned. Muscadine vines bleed profusely where they are pruned but it won’t hurt them. They will stop and heal over in a few days. Annual pruning, proper fertilization, (think soil test), and irrigation are the big three for muscadine production.
Give your friend a hand with the pruning and hopefully they will share the results with you!
Good luck!
Keith
Henderson, Texas