I have a grapevine that is about 12 years old. About 4 years ago it developed black rot that has been killing off the grapes ever since. There has been a lot of talk about sprayes, spurs in the ground, and measures to control the problem. But I am wondering... does once the vine gets the disease, is it there to stay? Or does it concock the disease afresh each year because of the spurs in the surrounding ground? The reason that I am asking is because what if I was to place a barrier on the ground.... my thinking was if the spurs cannot get to the vine, the vine should be safe.
Thoughts?
Thoughts?