Couple of weeks ago I found a few leaves that looked like this and pretty much ignored them, they were on the trunk. Clipped them off and disposed them. Now they seem to be progressing upward and have found a couple on the cordons. Several vines are affected. Other leaves and the plant appear normal, nothing wilted and no lesions noted prior to parts of the leaf turning brown. It starts at the margins and progresses inward. vines are Norton/Cynthiana. Is this something to worry about? The nearest picture I can find on the internet looks like pierce’s disease, but I thought Norton was immune or at least resistant to that.
The leaf texture is soft and pliable, leather like, instead of “crispy”. img '62 is a bit atypical.
The last two, image's 64 & 65, are top and bottom of the same leaf.
The leaf texture is soft and pliable, leather like, instead of “crispy”. img '62 is a bit atypical.
The last two, image's 64 & 65, are top and bottom of the same leaf.