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market-farming - H2O2 info, was Re: Another cure, perhaps...(Re: Zinnias)

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  • From: S & S Aqua Farm <snsaquasys AT townsqr.com>
  • To: "market farming" <market-farming AT franklin.oit.unc.edu>
  • Subject: H2O2 info, was Re: Another cure, perhaps...(Re: Zinnias)
  • Date: Mon, 06 Mar 2000 07:44:09 -0600


At 07:56 PM 03/05/2000 -0500, Alex wrote:
>Jim & Jo,
>
>I want to try H2O2 this year on my tomatoes for early blight. Did you start
spraying
>before symptoms od after? What time of day did you spray (sun or shade)?
Top and bottom
>of leaves or just one or the other? Thanks for this info. I'm encouraged to
hear H2O2
>slowed blight down. My tomatoes don't succumb immediately, but it cuts down
on fall
>harvest.

>five springs farm wrote:
>
>> We have not tried this on Zinnias, but another possible cure for fungal
>> problems is Hydrogen peroxide (H2O2), the stuff you buy at the drugstore or
>> supermarket. Mixed 3TBS per gallon we have used it on Peach trees for peach
>> leaf curl (very successful) and tomatoes (from about 8" high till late
>> summer once a week) for blight. Not a cure but slows disease down, it would
>> seem. Will experiment further this summer, eg powdery mildew on summer
>> squash.
>

I have the following information on Hydrogen Peroxide from ACRES that I
thought would be appropriate here -- for those of you interested in pursuing
it as a treatment for any/various problems. Paula
-------------------------------------

This is from a Consumer Reports article,
>March 1985, published as ECHO Newsletter 1984-1992 Highlights, which I only
>have a portion of):
>
>Grades of Hydrogen Peroxide by Rodney E. Alsop, D.Ph.M., Ph.D.
>
>3% Hydrogen peroxide (drug/grocery store variety)
> Made from 50% Super D Peroxide, Diluted, Contains stabilizers
>-phenol, acetanilide, acetanlid, sodium stanate, tetrasodium phosphate among
>them.
>
>6% Hydrogen peroxide (Used by beauticians for coloring hair)
> Comes in strengths labeled 10, 20, 40 volume. Must have activator
>added to be used as a bleach. Stabilizers used unknown at this point.
>
>30% Re-Agent Hydrogen Peroxide
> Used in medical research. Also contains stabilizers
>
>30-32% Electronic Grade Hydrogen Peroxide
> Contains a small amount of phosphorus to neutralize any chlorine in
>the water it is combined with.
>
>35% Food Grade Hydrogen Peroxide
> (Also 50% Food Grade Hydrogen Peroxide)
> Used in food products like cheese, eggs, whey products. Also used
>to spray inside of foil lined containers for food storage - known as the
>asceptic packaging system.
>
>90% Hydrogen Peroxide
Used by the military as a source of Oxygen at Cape Canaveral. Used as a
propulsion source in rock fuel.
>
>99.6% Hydrogen Peroxide
This was first made in 1954 as an experiment to see how pure hydrogen
peroxide could be.
>
>I agree that this source may not be the ultimate. However, we've used this
>(and others) as our basis for using 35% food grade H2O2 in aquaponics. We
>also have a healthy appreciation for it's potential dangers if used (or
>handled) unwisely. Please keep in mind that this (35%) rate is a caustic
>solution that can do harm to unprotected human skin, eyes, etc.

>Paula Speraneo
S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775 417-256-5124
Web page http://www.townsqr.com/snsaqua/





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