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Best Organic Herbicides (Pre M and Post M)?

Discussion in 'Organic Lawn Care' started by recycledsole, Sep 21, 2013.

  1. recycledsole

    recycledsole LawnSite Gold Member
    from MD
    Messages: 3,273

    Hey guys, I would appreciate to hear from your actual experience which pre m and post m organic herbicides are effective. The only one I have heard about is corn gluten as a pre M not post M.
    thanks so much
  2. BlazersandWildcats2009

    BlazersandWildcats2009 LawnSite Member
    from Houston
    Messages: 197

    Famous Quote that stands true. Nothing stops weeds better than a healthy, thick, green lawn.

    "Weeds rarely invade a high-quality lawn. All the money in the world can be spent on weed-controlling products and techniques, but if the lawn is not maintained properly, the weeds will return."

    There are hundreds of products on the market. Almost any gardening centers sale "Organic" weed killers from what the label says. The most tried and trued method for killing active growing weeds is Vinegar from the grocery store. However, Vinegar is extremely acidic, so again I wouldn't use without knowing the conditions of soil and knowing the current acidity of the soil as it sits.
  3. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    Vinegar seldom affects the Roots of a weed...
  4. foreplease

    foreplease LawnSite Silver Member
    Messages: 2,062

    Perhaps you have never had a pickled carrot :)
  5. phasthound

    phasthound LawnSite Fanatic
    Messages: 5,150

    Now, that's just funny.
  6. BlazersandWildcats2009

    BlazersandWildcats2009 LawnSite Member
    from Houston
    Messages: 197

    How about proper mowing and irrigation?:clapping:
  7. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    A mature lawn rather than a dependent lawn,, is the only lawn,, that has a shot at weed prevention...
    Obviously 'scalped' turf is very subject to weed attack as would a dethatching event... irrigation to protect the concept of deep root growth is also good...

    However there are many parts to habitat that is conducive to the growth of any given plant... Soil is the most neglected aspect turf... There's nothing wrong with looking at you soil to see what's happening... At least the first 3",,, but deeper is generally better... :)
  8. Victorsaur

    Victorsaur LawnSite Member
    Messages: 81

    Flame weeding. I will post a video on here soon to show how effectively I have used flame weeding as a post emergent herbicide. It is USDA certified systemic weed control but is not selective. From my experience it is superior to the usage of vinegar as a non selective PE herbicide.

    Ask phasthound about the selective post emergent herbicides that work.

    As far as effective pre-emergents, corn gluten meal is unreliable. A nice healthy green turf will out perform common weeds any day of the week.
  9. BlazersandWildcats2009

    BlazersandWildcats2009 LawnSite Member
    from Houston
    Messages: 197

    Couldn't have said it any better.

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