Dying new vine, yellow/fuzz/black tips??

[Frances.lea]

Bought this 3 weeks ago from a local nursery. Started yellowing from the bottom. I haven’t fertilized. May have over watered. The leaves have a white fuzz on them, almost like threads. Tips of the new growth are starting to turn black, dry and fall off. Can it be saved? Have sprayed twice with copper antifugal, no change.

 

[Lando545]

Hi Frances, I think the leaf fuzz is normal for some varieties. what have your outdoor temperatures been like for the past 3 weeks? How often do you water and for how long; Drippers or do you just run the hose on it for a while?

 

[efBobby]

It may just be in the process of acclimation/root shock from transplantation or just being moved in general.

If that is the case it doesn’t matter how much it is watered since the roots are not uptaking any fluids.

In the mean time, if it is potted move it to a shady place and place a vine tube on it.

If it is planted then place a vine tube on it and use some sort of object to shade it and it’s immediate surroundings.

I have a piece of latticework for this purpose. The tube keeps the sun out and moisture in but adding the lattice also drops the temps of the surrounding area which also assist in slowing the rate of transpiration.

Hope this helps

 

[balatonwine]

To consider:

- If the vines have fungal damage, Copper is only a preventative for fungus like powdery mildew, not curative. If the vines already have been infected, copper will not help now. And copper can damage young growth, so don't over spray. In the Autumn, if you are in the Northern Hemisphere, of the year, when you see damage from fungus, it is too late to apply copper for those leaves. Applying fungicides now only help keep healthy leaves healthy so they can last the longest to help the plant lay down a good root system for the winter.

- While it looks like some fungal damage, if you are in the Northern Hemisphere this is also the time of year that vines leaves start to senesce, so some of this may also be normal aging. If you are in the Southern Hemisphere and you are starting the growing season, simply setup a regular spray schedule to proect the new leaves, because if those old leaves are diseased they will fall off anyway and be replaced with new healthy leaves which you want to protect.