[Market-farming] Basil Downy Mildew

Shoemaker, William H wshoemak at illinois.edu
Mon Feb 11 20:40:32 EST 2013

I'm curious about this, only because I don't know much about this disease in Basil specifically. I run into downy mildew in other crops and one interesting treatment that can be very effective is phosphorus acid. It isn't a high-powered chemistry. Its a pretty simple product that serves as a fertilizer as well as an effective eradicant of downy mildew in grapes. Does anyone know if it can be used on downy mildew of basil? Does it comply with OMRI? It can be a very effective tool for addressing downy mildew in grapes.


William H. Shoemaker,

Northern Illinois Viticulturist - IGGVA

Illinois Grape Growers and Vintners Association

wshoemak at illinois.edu<mailto:wshoemak at illinois.edu>

From: market-farming-bounces at lists.ibiblio.org [market-farming-bounces at lists.ibiblio.org] on behalf of Deb Taft [deb at mobiusfields.com]
Sent: Monday, February 11, 2013 7:21 PM
To: Market Farming
Subject: [Market-farming] Basil Downy Mildew

Hi All.

I had Basil Downy Mildew for the first time last year; wiped out my crop after just a couple weeks of usable harvest.  I was hoping there would be some disease-free seed available but I'm not finding it anywhere.  It looks like there is not yet a test to determine whether seed is infected or not.

Have any of you had luck with treatment?  Looks like Actinovate and Oxidate are the best organic controls.

I know the seed I have left over from last year carries it so seems kinda silly to use it...but if there isn't any disease-free seed available, then throwing it out and randomly buying other seed is silly too.

Shall I just be ready to treat it prophylactically?


Mobius Fields
Sleepy Hollow / Katonah / Waccabuc NY
12" of snow Saturday, high of 40 today, in the 40s all week!

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