Steve, that was most helpful. I've been looking all over Louisville for Ascetic acid and people that have been the cleaning industry for 28 years look at me like I have 3 heads. They've never heard of it. We are going to try some 5% that we bought at Kroger, on some weeds and see what happens.
Bob
Bob, Kathleen, and Kory Brocious
Tenacity Farm
Campbellsburg, Kentucky
>From: Steve Diver
>Reply-To: Market Farming
>To: market-farming AT lists.ibiblio.org
>Subject: [Market-farming] Re: Vinegar source anybody?
>Date: Fri, 18 Apr 2003 12:05:10 -0500
>
>Vinegar for weed control is a hot topic, so I will post
>the following resources.
>
>I see that some of the natural herbicide products on
>the market now have the USDA Organic label. That is
>good to know. It opens options for non-chemical weed
>control in organic no-till, perennial crops, pathways, etc.
>You probably just have to try it to gain an appreciation for
>efficacy -- how much weed control you can really get, and
>how much it's going to cost.
>
>Here is the USDA-ARS web page that summarizes
>the USDA research effort. This is what generated so
>much interest in this topic.
>
>The "Vinegar as an Herbicide" Information Page
>of The Sustainable Agricultural Systems Laboratory
>http://www.barc.usda.gov/anri/sasl/vinegar.html
>
>"Greenhouse and field research have been conducted at
>Beltsville, Maryland, to determine the efficacy of vinegar for
>controlling weeds. The results indicate that vinegar can kill several
>important weed species at several growth stages. Vinegar at 10,
>15 or 20 % acetic acid concentration provided 80-100 percent
>kill of selected annual weeds, including giant foxtail up to 3 inches
>in height, common lambsquarters up to 5 inches, smooth pigweed
>up to 6 inches, and velvetleaf up to 9 inches."
>
>However, this page does not include additional details, such
>as restrictions for legal use and wholesale sources of acetic
>acid.
>
>Iowa State Univ and Univ of Wisconsin put out the
>following articles that address these concerns. See:
>
>Acetic Acid (Vinegar) for Weed Control Revisited
>Micheal D. K. Owen | Iowa State University
>http://www.weeds.iastate.edu/weednews/vinegar.htm
>
>Acetic Acid (Vinegar) for Weed Control
>Jerry Doll | Univ of Wisconsin
>http://ipcm.wisc.edu/uw_weeds/extension/articles/aceticacid.htm
>
>"It is important to recognize that the use of acetic acid (vinegar),
>unless the material is specifically labeled as a herbicide, is illegal
>and a violation of FIFRA. A number of companies have registrations
>for acetic acid to be used as a herbicide. This information can be
>accessed at http://www.gardenville.com, http://www.greensense.net,
>http://www.bradfieldind.com, and http://www.biconet.com"
>
>The people that regulate pesticides -- and how they
>focus on home-made products and recipes-- are picky.
>You may want to check with your State Dept of Agric as
>well as your organic certification agency for approved
>ideas on home-made acetic acid mixtures for weed control.
>
>Otherwise, you can look into approved products (natural
>herbicides) containing acetic acic, lemon oil, clove oil, etc
>from one of the suppliers listed above. For example, I see
>that Biocontrol Network carries Burnout (vinegar + lemon juice)
>and Matran (clove oil, acetic acid) natural herbicides,
>and each carries the USDA Organic label.
>
>For insight into wholesale types of acetic acid, and how one
>product supplier has found "wiggle room" for legal sales
>of acetic acid, see:
>
>Fact Sheet for Vinegar/Acetic Acid Recommendations
>http://wsprs.wsu.edu/VinegarFactSheet.pdf
>
>Bradfield Natural Fertilizers, in Springfield, Missouri, is
>the company selling 20% concentrated acetic acid
>http://www.bradfieldind.com
>
>BD-Now, the email list on Biodynamic farming, had a good
>thread on vinegar for weed control, in June 2002. You
>have to poke through the archives, but the posts contained
>insights into dilution, caution as to its safe use in mixing, and
>mixing with citric acid for synergistic weed killing effect.
>http://csf.colorado.edu/archive/2002/bdnow/mail19.html
>
>Regards,
>Steve Diver
>
>==================================================
>In response to:
>
>Folks,
>I am trying hard to find a source for potent vinegar. Somthing greater
>than
>the 5% strength you find on the grocery store shelves. Anybody have a
>source they would share? We want to use it for weed control. The
>stronger
>the better.
>Bob, Kathleen, and Kory Brocious
>==================================================
>==================================================
>
>
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>From wiediger AT msn.com Fri Apr 18 13:55:14 2003
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