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

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  • From: wytze <geno AT zap.a2000.nl>
  • To: market farming <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: H2O2 info, was Re: Another cure, perhaps...(Re: Zinnias)
  • Date: Mon, 06 Mar 2000 15:33:27 +0100




Is H2O2 allowed in organic farming?
wytze

S & S Aqua Farm wrote:

> 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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