how to kill weeds permanently (roots and all) that grown throw a pavement that cannot be broken up?

Discussion in 'Put Your Questions to the Experts!' started by verena vuori, Jun 16, 2016.

  1. verena vuori

    verena vuori New Member

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    Hello, one of my housemate wants to put down wooden decking on a patio made out of big stone tiles. Weeds are growing through the cracks between some tiles, but the entire tile patio cannot be dug up/taken apart. So he is resorting to spraying round up because he wants the weeds to be gone and not grow through his decking.

    I don't know enough to advice him on alternatives beyond covering the weed with a piece of wood to kill the plants, but that will likely not kill the roots (mostly dandelion). However I despair at him using round up in our garden.

    Any advice is very welcome! Thanks so much
     
  2. Bryant RedHawk

    Bryant RedHawk Junior Member

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    Since you can't take up the patio the next best thing would be to salt the cracks, the salt will stop the issue and it will not have the harmful effects of using roundup, which will persist in the soil for years. You might point out to your housemate that even though glyphosate will not kill plants once it hits soil it will stay around and stay around and stay around. This means it will indeed be taken in by plant roots, but it will not kill the plants, if you are growing food plants, then you will end up eating the glyphosate that those plant roots take in, a "NOT GOOD" situation for either of you (glyphosate has been shown to be a CARCINOGEN, why take the chance of giving yourself or worse someone else cancer). Also, any windblown spray will effect any plant it touches, meaning it will kill them eventually if not immediately. Don't forget, Dandelion is edible, it makes nice salad greens. mix with lettuces for a bit of spicy with a hint of bitterness like endive.

    For glyphosate to be effective you need to spray the growing tips, but it is safer for all if it is applied with a brush so there is no worry of overspray, and do not breathe it in, that is a "NOT GOOD" situation. They will also need to wash the clothes they are wearing, scrub their hands, be very careful to not get it in their eyes or mouth. This sounds easy but all it takes is one little breeze at the wrong time and problems will arise. Poisons are never a good thing! Our Earth Mother has never used them to control plant growth, humans are the only critter that purposely kill themselves and others without it being over territory rights.
     
    Last edited: Jun 22, 2016
  3. bpl

    bpl New Member

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    What about black plastic? If the plants can't photosynthesise they must eventually give up?
    Brett
     
  4. Bryant RedHawk

    Bryant RedHawk Junior Member

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    Black plastic will work, but it is pretty slippery to walk on and it will break down within a year, leaving you with tiny bits to rake up and dispose of. Most of these bits of UV destroyed plastic continue to break up as you try to pick them up leaving a never ending cleanup situation.
     

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