Re: [nafex] powdery mildew on grapes

["Lon J. Rombough" <lonrom@hevanet.com>]

The classic treatment is sulfur, though more as a preventative. Once the
disease has started you have to use wettable sulfur and spray it on.  I've
also been looking into a new product called OxiDate that looks interesting. 
It's a peroxide compound that releases oxygen when sprayed on and will kill
established mildew.  I have a paper on it, but it's pretty long to post.
-Lon Rombough
Grapes, unusual fruits, writing, more, at http://www.hevanet.com/lonrom

----------
>From: PRishel826@aol.com
>To: nafex@egroups.com
>Subject: [nafex] powdery mildew on grapes
>Date: Wed, May 31, 2000, 7:04 AM
>

>Hi all, while we're on grapes here...my French Columbard vine has developed a 
>severe case of powdery mildew...all of my American varieties are untouched 
>(obviously, I guess), as are my other viniferas...only the Columbard (fruit 
>included, it seems) has it.  Does anyone have any spray suggestions for me 
>that might check the pm?  I'd be grateful.  Thanks so much, Patricia Rishel  
>Los Angeles  USDA Zone 11
>
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