Need help with pruning and fungicide for my grape vine

[NJDrew]

Hello everyone, I'm new here and I'm hoping you can give me some advice on my grape vine. I bought it 4 years ago from Lowes thinking it would be cool to try and wow its an art form all to itself. So as I said its a 4 year old grape vine (4th year this year) and its a "Mars Seedless Grape" type. To give you some history, the first year I trained it, second year I cut off all the clusters (I hope my terminology it correct) to have the vine focus on its growth as some one had suggested and the third year it produced about a bushel of grapes with about 30-40% loss.

So my question is two parts, first I lost about 30-40% of my grapes last year due to two types of fungus, black rot and the other one where the grape falls of of the cluster before it fully formed, forget the name of it. What fungicide should I use or is there another method?

Second question, is I'm still new to pruning and youtube has about 10 ways to prune grape vines. I pruned it back, but I don't think I pruned it enough. hopefully you will see the picture I'm going to try and attach. How do you think I should best prune this?

[starloc]

It looks pruned similar length to people over here do, there is no 100% correct way, everyone has there own way of doing it!

if it has started to grow buds dont prune it, pruning too late as it starts to grow may harm the vine as it will bleed, I had one bleeding for the last week , i managed to fill 200ml of sap into a cup before it stopped dripping out today

Here they spray with `Bordaux mixture` (copper / lime ) mix some use pure copper sulfate some use sulfur ( toxic to a few varieties) I dust vines with sulfur every now and then for mildew, copper abd bordeaux (probably sulfur as well! ) are being banned by europe but people still use them,

I Sprayed mine as a preventative measure about a month ago when the vines looked dead, and will probably spray tomorrow or Monday again with something now the buds are opening into little leaves, copper/lime probably but maybe milk

[greenishfing]

Hello and welcome.

Now is not the time to prune the old wood on a grapevine. It will bleed because the sap is rising. You should prune old wood in the depths of winter when the sap is down. I would have pruned it more.

Sorry no idea about fungicide.

Here are pics of mine in Summer and then following Spring,

[roitelet]

As everyone has said DONT PRUNE IT NOW. For this year just snap of the soft growth that use don't want to keep the air flow going and help to prevent fungus. Allow about one bunch of grapes to form for each foot of rod. That's the six stems you have trained horizontally. If you have the time and patience thin the grapes in the bunch by about half when the seeds have formed. Use a small pair of scissors and avoid touching the grapes. Try the fungicides that the others have recommended.

In the depths of winter cut back all the lateral stems to the main rods.

By the way welcome to the vine