BTW,

I have tried to grow organically. It worked extremely well on
chamboucin and not so well on vinifera. My secret spray, OxiClean. It's
cheap and it's mostly sodium percarbonate. Basically it produces
hydrogen peroxide ( oxygen bleach) when mixed with water. It is a very
efective sporicide. Actually it's a great sporicide. You need to spray
about every 5 days ( a number I came up with based on fungus
germination cycles) and the one fungus it doesn't seem to stop is
phomopsis cane but I did skip a spray that I shouln't have and the jury
is still out on that observation. I had a good and extremely clean
harvest. I started spraying the wood in March and continued through
harvest. I mixed it in a 5 gallon bucket with warm water and used 2 of
the little scoops ( the old scoops that came with oxiclean) per 5
gallons. If some one knows of a way to control phomopsis organically,
it would work well. I was surprised how little black rot I had
considering chambourcin is extremely sensitive to black rot. You can
also spray in the rain, which I did many times, and I think it's better
to spray in the rain and take advantage of the water that oxiclean
needs to produce the hydogen peroxide that it produces when mixed with
water. If I had a mechanical sprayer I probably would have continued
this year but my arm almost fell off last year spraying the vineyard so
often with a backpack sprayer. I highly recommend the stuff, Oxiclean (
sodium percarbonate ) .

Bob


wrote:
> In California where black rot and Downey Mildew are non-existant, you
> might be able to get away with it but growing organically in the
> tropical rain forest conditions of the east is another thing. I would
> bet most of the organic wines are not vinifera if grown in the east.
>
> Bob
>
>
> miker wrote:
> > wrote:
> > > Miker,
> > >
> > > Organic control of fungus on vinifera??? Good luck.
> > >
> > > Bob
> >
> > Sulfur and Stylet Oil are both organic and both will control fungus on
> > vinifera. Fungastop is organic and I've seen tests that show it will
> > control fungus on vinifera. There are plenty of other options out there
> > as well. There are lots of organic vinifera wines on the market, and
> > I'm sure all of those growers see fungus problems and somehow overcome
> > them.