Mulch over weed

Discussion in 'Landscape Architecture and Design' started by Gnyus, Feb 6, 2006.

  1. Gnyus

    Gnyus LawnSite Member
    from Canada
    Messages: 33

    I have to lay mulch on a large area overtaken by weeds. Some weeds a getting pretty tall making it almost impossible to pull all of them out. Can I just overturn the soil and lay the mulch directly over it or should I use chemicals to ensure weed won't get through?

  2. turfsolutionsmfg

    turfsolutionsmfg LawnSite Member
    Messages: 1

    use chemicals!!! you may also want to put down landscape fabric or sell weed maintance with pre and post emergents.
  3. work_it

    work_it LawnSite Senior Member
    Messages: 976

    Won't even begin to tell you how bad of an idea that is. Have you taken the time to identify each type of weed you're dealing with?

    NEUSWEDE LawnSite Bronze Member
    from Maine
    Messages: 1,150

    Don't use chemicals or you may end up killing something you don't want to kill. I would till everything, rake it all out and then put on a think layer of mulch.
  5. YardPro

    YardPro LawnSite Gold Member
    Messages: 3,570

    lol, tree

    use roundup first..
    any weeds that will regenerate from tubers will not be killed by tilling.. they will be propigated ( making lots of new weeds).. also any weed seeds that are dormant deep in the ground can be brought to the surface and germinate...
  6. Green-Pro

    Green-Pro LawnSite Bronze Member
    Messages: 1,420

    Double ditto, this is the practice for me, just got to be careful when spraying, but if your licensed and knowledgeable then you should already know that.
  7. JS Landscaping

    JS Landscaping LawnSite Member
    Messages: 192

    Definatly use a weed killer to get rid of the existing weeds. If there is no landscape fabric, apply it now. When we are installing new mulch in beds we usually put down a pre-emmergent herbicide to prevent any more weed growth and every spring we treat all the beds in our commercial accounts with a pre-emmergent to minimize our time being spent weeding throught the growing season. Just make sure you are licenced before you start applying chemicals to clients landscapes......Hope this helps......Have a great day!

  8. LawnScapers of Dayton

    LawnScapers of Dayton LawnSite Silver Member
    Male, from Dayton, OH
    Messages: 2,572

    I thought landscape fabric is typically a "no no" with mulch......

  9. PSUturf

    PSUturf LawnSite Senior Member
    Messages: 663

    Treat with Roundup when weeds are actively growing. Wait 5 days then apply Preen and mulch. If weeds are dormant (ie winter) or growing slowy (ie summer) you may not get complete control. Definitely do not disturb the soil if at all possible. It will just stir up more weed seeds.

    NEUSWEDE LawnSite Bronze Member
    from Maine
    Messages: 1,150

    I am not a tree hugger by any means. I am studying currently to get my Master Pesticide Appilcators License. Just been finding out a lot of stuff that the back of a bottle of Round-up won't tell you.
    All has to do with opinions, I just wouldn't do it in case I wanted to ever wanted to plant there.
    good luck

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