Well, I'm pretty sure they're concord grapes -- because I like
concord, and that's what they taste like.

As far as whether or not it's phylloxera, I took a leaf that had a
bunch of galls on it (easy, as most of the leaves had them) to a
gardening store, and after some discussion and research, we "verified"
that's what it was. This vine is relatively young (i.e. only a few
years old, I think). The reason I don't know much about the vine is
that it was here and growing before I even knew what it was. I knew
there were vines on the fence (towards the back of my property), but
this is the first year that it produced *anything*.

I live in Southern Wisconsin.

Thanks for all of your feedback! I really appreciate it.

Jeff



On Nov 7, 12:04 pm, AxisOfBeagles wrote:
Agree with the prior poster - are you sure you have phylloxera? First,
phylloxera attack the vines, not the grapes. If you have phylloxera,
but still have grapes, the grapes should be fine. Your problem would be
the mortality of your vines.

What are the symptoms that cause you to suspect you have phylloxera in
your vineyard? What part of the country are you in?

Second - as the prior poster asked - are you sure you have Concord? As
best I know, Concord is of the labrusca species - which is phylloxera
resistant (phylloxera may be present, but to the best of my knowledge
do not present a mortality threat to your vines).

On 2007-11-07 08:26:46 -0800, said:

Well, it looks like my grapes are infested with grape phylloxera.
Since there's no known "cure" for this problem, I have to ask: are my
grapes even edible? Or does the whole vine have to be cut down and
burned? And if so, how long before I can re-plant (with resistant
rootstock)?

Thanks so much for your help.
Jeff