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horticultural vinegar

Discussion in 'Organic Lawn Care' started by dan deutekom, Jun 30, 2004.

  1. dan deutekom

    dan deutekom LawnSite Senior Member
    Posts: 424

    I have been using horticultural vinegar to control the grass and vegetation that comes up in the cracks of the lockstone paths in my park. I have just noticed that the lockstone has been stained/discoloured in every spot where I have sprayed. Will this discolouration disappear with the next rain storm? Has anyone else had this problem? My mix is as specified by the manufacture (ecoclear).
  2. woodycrest

    woodycrest LawnSite Senior Member
    Posts: 435


    maybe the vinegar just cleaned the stone...and left 'stains' or clean spots?
  3. cenlo

    cenlo LawnSite Senior Member
    from Ontario
    Posts: 322

    Dan, I have sprayed quite a bit of Vin. with no discolouration. Could it be something else in the product?
  4. Neal Wolbert

    Neal Wolbert LawnSite Senior Member
    Posts: 407

    Is hort. vinegar registered as a pesticide in your state?. As a licensed applicator in Wash. state I can't apply vinegar as an herbicide because it is not registered as a pesticide, therefore illegal to apply commercially. Dept. of Ag. is not going to register it because of lack of scientific data on the source of ingredients, etc. and too many unanswered questions as to the fate of the product and it's effect on the environment. Maybe problems like the one you are facing would have been addressed and warned against if the vin. had gone through the labeling process? Just a thought. Neal
  5. dan deutekom

    dan deutekom LawnSite Senior Member
    Posts: 424

    The staining problem must be because of an additive (perhaps the lemon oil) I have found that it disappears with the first rainfall thankfully.
  6. trying 2b organic

    trying 2b organic LawnSite Senior Member
    Posts: 566

    He said he is using Ecoclear brand hort. vin. which is a registered pesticide here in Canada. It works great and is not residual.
  7. Neal Wolbert

    Neal Wolbert LawnSite Senior Member
    Posts: 407

    Any regrowth problems with deep rooted perennials and grasses? Neal
  8. dan deutekom

    dan deutekom LawnSite Senior Member
    Posts: 424

    Deep rooted perennials and grasses regrow very quickly. You have to be persistent and respray when they come back. This does not really bother me except that it is very expensive and time consuming. I have also had complaints about the vinegar smell. (I am in a public garden park). I have found that if you spray a large area the smell can be detected quite easily for several days. The smell of burning dieing foliage and vinegar is not pleasant. One of the things I do like is you see the results of the vinegar within several hours unlike roundup which can take a week or longer.

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