Why Are My Grape Vines Leaves Curl Up Happening On All Three Plants

Question

One vine is about 4 years old and the other 2 are 3 years old had no grapes on the older plant this year but all the leaves are like a cup I have read it’s from using roundup but I have never bought that stuff. Hope someone can tell me. Thanks for your help

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Answer 1

This reminds me of the beginnings of grape leafroll virus. Viral infections have no cure, but you can destroy the vines, and purchase some that are resistant to the disease.

https://www.gardeningknowhow.com/edible/fruits/grapes/grapevine-leafroll-control.htm