glyphosate

Discussion in 'Pesticide & Herbicide Application' started by cenlo, May 28, 2006.

  1. cenlo

    cenlo LawnSite Senior Member
    from Ontario
    Posts: 322

    For a "kill all" application prior to seeding or laying sod, what do you guys use for the mix rate? Also, how soon after can you sod or seed? I assume sodding could be done before seeding! I use a 100 gallon tank. (btw I did read the label, just a bit too much info to digest.

    Thanks, Don
     
  2. brookviewlawncare

    brookviewlawncare LawnSite Senior Member
    Posts: 356

    depends on the % of AI i think round up pro would be 2-4%
     
  3. indyturf

    indyturf LawnSite Bronze Member
    from Indy
    Posts: 1,873

    I like to use a BP sprayer and mix 5oz of round up per gallon. you can actually seed as soon as you want to after using round up since it works through the leaves of the grass. I would want to wait until the sprayed areas turned brown before sodding though.
     
  4. ArizPestWeed

    ArizPestWeed LawnSite Bronze Member
    Posts: 1,457

    Well , the Round Up label states to wait 10 days before seeding .
    I read that 5 years ago , so , could be wrong
     
  5. Runner

    Runner LawnSite Fanatic
    Posts: 13,494

    That is just because of the soil preparation. Actually, as soon as you spray, like within a day, you can work up the soil and seed, but it is much easier after thestuff has dried out. If you spray gly over top of new seed, it will help the germination rate quite a bit, also.
     
  6. Rtom45

    Rtom45 LawnSite Senior Member
    Posts: 456

    If I'm not mistaken, 5 oz./gallon exceeds the label rate.
     
  7. jtlnl

    jtlnl LawnSite Member
    Posts: 6

    if you are seeding or sodding either one; your primary objective is to get good seed/root to soil contact, are you planning on tilling or anything after killing the old growth?
     
  8. upidstay

    upidstay LawnSite Bronze Member
    from CT
    Posts: 1,357

    The label gives a rate /1000'. 2-3oz/1000' usually sufficient for grass. As far as when you can seed, I have sprayed, (touch up the areas I missed the first time) waited for it to dry and then seeded over it. The lawns all came in great. As far as sodding, I would not lay sod over dead grass. You have to get the old stuff up. You can seed through it, just don't lay sod. The grass will form ammonia when it decomposes, and this will get trapped under the sod layer. It will build up, the roots will hit it an the sod will die.
     

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