Grape Vine Black Rot fungal disease and treatment

[@dimitrifotopoulos3701]

Thank you Sir. My grapevine is originally from Greece. My father (God rest his soak ) planted them about 20 years ago, so they are very much established. First year that I am trying to make wine on my own with a good friend who is helping me. I been fighting this fungus every year. This season I am determined. Thank you for sharing your knowledge !! Very much appreciated !

[@genevelis6075]

Thank you so much Pete! I used your approach on my neighbor’s nails fungus. Cut off a tip and toe for a better air flow and sun access for photosynthesis. For some odd reason he’s not happy. He said for me and you to expect a letter from his attorney. He’s such ungrateful person. I even cut off his nails with fungus and sprayed organic solution you used on your grapes. Instead of thank me and you, he was screaming like a mad man. Next time I will not waist my money on organic.

[@petebeasttexashomesteading]

😂👍

[@theplant8767]

I watched your potato video from 7 years about and I was very happy to see you're still posting

[@BacktoCountry]

Thanks for sharing Pete, we’ve gotten a lot of rain this year.

[@wdwtx2.0]

Keeping them healthy.

[@juliebarnett9812]

Thanks Pete B.

[@moviesforrandy]

thanks my grapes are rotting.thought I was over watering. I figured when the grapes are on the vines they need a lot of water.

[@AliBaba-hn8tv]

Thank you, I hope I can save my grapes now.

[@lisawillis2469]

my grapes have the same thing, thank you very much

[@MichaelRay380]

Hey, you may be interested in the Munson varieties. They're 100 years old, but bred in Grayson County, Texas, and are typically pierces disease and fungal resistant. Muscadines of course are bulletproof regardless typically but I've only recently found out about these Munson bunch grapes and think they might do really good for a lot of people. I'm in North Carolina, so I'm mainly worried about them leafing out too early or not being able to keep up with us having a bit more rain than you guys, but they seem like some of the most disease resistant bunch grapes you can get for anywhere east of the great plains, along with the other more popular varieties like concord or blanc du bois. There's some stuff coming out of Florida, too, pierces disease resistant bunch grapes, I just don't know how resistant to fungal diseases they are, and I'd imagine they're limited to only growing in areas as warm as the gulf coast.

[@petebeasttexashomesteading]

Awesome, thanks for the info 👍

[@thilltony3362]

Our 2nd year of harvest, black rot came in and took 80% of the crop. Year 3, it took 90%. Year 4, it took 100%. This year, I saw black rot starting, and I figured we would lose them all again. Then I remembered that when our tomatoes had blossom end rot, a cup of Epsom Salt dissolved in a gallon of water stopped the rot cold. What could it hurt? I mixed and poured a gallon around each vine. The black rot on the grapes instantly stopped! No more new rot. I'm not sure if I should treat it again or if the one treatment is enough, but I'm absolutely thrilled. Now I wonder if this isn't more of a nutrient issue. The plant being weak and succumbing to disease it should be immune to?

[@petebeasttexashomesteading]

Wow sounds interesting but not too much salt because it will kill the plant too.

[@thilltony3362]

​@@petebeasttexashomesteading - Yes, that's why only a cup to a gallon of water. With tomatoes, you only have to treat them once, and they are a much smaller plant. So for now, I'm just going to watch and see. I'm also watering the vines to help distribute the Magnesium and to make sure it doesn't burn them. I will post back later to make updates, but it's been about a week and ZERO rot on the grapes. I'm thrilled!

[@AristoclesPlaton]

When you clip the ends off, the vine below will start to produce laterals. If left unchecked, the density and tangle of the vine will get worse. Why not set up some perpendicular support (such as the wire you are using) to train them away from the central tangle. You could put these in at a height above your head, to make easy access to your grapes. I do not cut tips unless I want a more dense growth. The natural oils are harmful if you breathe them in too much. I would not do that work without a face-mask and breathing filter. It is also close to midday in this video. It is better to spray early in the morning, before direct sunlight it on the plants. When you find leaves with rust-spots, it is advisable not to drop them on the ground. As the leaves dry out the fungus will create spores and the disease will spread. You should put the infected leaves in a plastic bag that is sealed. You can dispose of them by burning the refuse. Do not add them to a compost heap. You have said nothing about cleaning your clippers. When clipping infected leaves or branches, you need to continually clean your tools. A good idea is to have 3% hydrogen peroxide solution to dip the clipper blade into as you move from vine to vine. A 98% Isopropyl alcohol will also do the trick. Avoid spreading the disease from vine to vine with dirty tools. And, of course, avoid touching the infected leaves with your hand, as hands do not take kindly to peroxide or concentrated alcohol. If you do use your hands, do not touch any healthy plant until you have finished your work and can wash your hands.

[@curtfreese9156]

Did you have success with treating fungus or just preventing? Thanks . ..enjoy your videos

[@petebeasttexashomesteading]

@@curtfreese9156 this year I didn't because it was just too humid and rained a lot.

[@curtfreese9156]

Did you have to destroy plant?

[@petebeasttexashomesteading]

@@curtfreese9156 no, I will just prune it during the winter and in spring it will start over.

[@curtfreese9156]

Thank you Pete!

[@UrsulaTheeSeawitch]

Thank you for this. Is there a best time of day to spray with the fungicide?

[@naomitankersly8229]

Hello Pete so I just came across this video which I’m so glad cause my grape tree which I think is still young and planted in a planter has black rot the grapes are black and now that you mentioned about the red spots on the leaves I’m going to look at the leaves and see if they have that also I wanted to know before spraying the tree should I remove the grapes that are black? Or leave them? Thank you so much in advance for your help

[@deankay4434]

Should I see a Dr if I have that between my toes?

[@SamuelPerkash]

Beautiful information thanks so mutch 🎉

[@SuperStratov]

Hello Mr. Pete, great video. I have couple questions, if you can answer, as prevention, do you use fungicide on late outumn when all leavs are off? Or in early spring before vegetation start.? thank you .

[@petebeasttexashomesteading]

I would do it in spring when the leaves are on the vine and through out the growing season.

[@brandonmonroe7050]

Im here in Texas too looking for a good seedless blue black table grape to grow. Did your Concord or Alwood do better with our heat?

[@petebeasttexashomesteading]

They are doing better than expected, I just have to keep watering them. Here's a good website I ordered from. If you hover the mouse over where it says "Plants", you can search buy seedless or growing zone. doubleavineyards.com/seedless-grapes-for-sale

[@DavidKissinger-cm3lh]

thanx for the info, very helpful.

[@rachellllllla]

I was diligently removing all spotted leaves, did a copper spray and suddenly grapes started turning black :( should I remove the diseased grape clusters?

[@reginagross6163]

Question, newbie here. First year of grapes and our vines are full of fruit but it has been hit with black rot, lots of rust leaves and some “ black” grapes. Should I remove all the rust leaves? There is a-lot or just try to treat it first?

[@ThomasQuist]

There's some great papers online about preventing/treating black rot in grapevine. The ones I read said to clear out most rotten fruit and leaves, since spores on fruits and leaves survive the winter if you leave them there. Preventing is better than treating, so as said in the video you need to treat it with fungicides in the spring, before the plant starts to bloom. The fruits are most vulnerable at the start of their growth. Also make sure every part gets enough sun. Fungi thrive in moist environments with lots of heat (same as mold on your food does :P). So when you live in a humid climate or have lots of rain during a warm summer like me, make sure to clear the leaves so every spot gets lots of light. If there's already a lot of blackrot in your grapevine you should probably forget about getting any fruit that year. Throw away the fruit, clip the infested leaves and prevent by using fungicides early in the season as stated above. Hope this helps!

[@johnhartman8086]

Is it feasible to spray before spots are seen?

[@petebeasttexashomesteading]

Yes absolutely for regular maintenance 👍

[@johnhartman8086]

@@petebeasttexashomesteading Thank you very much. I went out with copper today.( label said for organic gardening)I am working with a vey old vine. growing out of a brushy property line. The lower vines has many grapes with brown spots. The higher grapes had no spots. Also the leaves had no spots So thanks to your video I am sure I can save them .And I sprayed the small vines that i have on a regular arbor.Thanks again.

[@donnarichardson5834]

What if all the leaves have spots on them? Should I cut them all off?

[@petebeasttexashomesteading]

if you have a few leaves with black rot spots, then take them off. But if the grape vine is mostly covered in it, then just keep spraying the plant down regularly with the spray and copper spray too. I was able to save most of my grape harvest this way.

[@MrTerminator73]

Can I use the OMRI copper fungacide when it starts budding and small leaves are appearing? I can see some rust spots already.

[@petebeasttexashomesteading]

It should be fine but try a separate area first and see if the leaves survive.

[@MrTerminator73]

@@petebeasttexashomesteading Will do. Thanks

[@310shadow310]

Does anyone in the comments or the posters of this video have knowledge of what happens to a grapevine when sprayed with Weed killer? I have reason to believe my neighbors sprayed my grape vines and now the vines leaves are turning brown and crusty looking and the new leaves that are growing are growing curled. I'm hoping that its not the case, but i just dont know as my neighbors are very rude and just not nice people. I'm trying to give them the benefit of the doubt. It is just hard because for one I seen them spraying the driveway in alley with weed killer and all of the weeds growing in the cracks have died. Shortly after that I started to notice my grapevine turning brown and the new leaf growth growing in curled and not getting as big as they should. I went to home depot before all of this and bought some pruners and hung them over the fence with a note stating that the pruners are to cut the grapes as they grow and that I would also be cutting them to keep them from growing to their side. But if they choose they can just train the grapes to grow along their side of the fence and I will take care of them on my side and all they had to do was enjoy fresh grapes. I went to look and they never even touched the pruners. I heard the man and his wife talking and he told his wife if you want me to I will. I had this strange feeling that they were talking about throwing the pruners over the fence, which led me to check if they even grabbed them. They did not and they must have never been touched because the note I left was fading. I dont really know what to do, I was growing them for my family and I to eat. But i dont want my kids eating them if they poisoned them. That's if the vine survives of course. there is growth further away from where the plant is sprouted that look fine. Could this be some type of disease? if it is there anything i can do to test the leaves to see if it has anything in it? Any help would be greatly appreciated.

[@MekanikNganggur]

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