Killing poi anna grass

Discussion in 'Pesticide & Herbicide Application' started by tjg, May 8, 2001.

  1. tjg

    tjg LawnSite Member
    Messages: 118

    I have a customer w/ poi anna grass and he wants it DEAD, it is in a bermuda yard. I have been told to use MSMA and then I was told it wounldn't work?
  2. KirbysLawn

    KirbysLawn Millenium Member
    Messages: 3,485

  3. tjg

    tjg LawnSite Member
    Messages: 118

    Thanks for the reply, it's a long story how I took over the grounds at the place, part of it is new,I(we)installed the sod, I will try to explain this but I can tell it won't go over good.
  4. greens1

    greens1 LawnSite Senior Member
    Messages: 352

    I am not framiliar with Bermuda grass, however 2,4 D will kill Poa annua in a hurry.
    Jim L
  5. David Gretzmier

    David Gretzmier LawnSite Gold Member
    Messages: 3,646

    If this is the same poa annua, or annual bluegrass down here ia Arkansas, 2-4-d won't do it. simazine or atazine will work at higher rates with some yellowing, and msma added will help. add ferrome/iron, surfactant and ammonia nitrate to tank mix, and fertilize very heavy w/ grannular ammonia or urea, and BE SURE to water in 36 hours, and once daily for 2 weeks. all poa should burn off in 3 weeks, then fert w/ slow release heavy, and put out simazine/barricade mix in early september to prevent. Dave :blob3:
  6. wd

    wd LawnSite Member
    Messages: 17

    Tell the customer it's going to die out naturally here within 5 weeks. Annual Bluegrass can't take heat and it sure gets hot here in the summer. If it's new sod don't put any pre-emergent on it except (drawing a mind blank here ... it's a fungicde that's used on bentgrass greens). Call your pesticide supplier (Lesco, Estes, etc.)in Tulsa or Oklahoma City and they'll know what I'm trying to remember here. Also avoid MSMA on new sod as it may kill it.
  7. NeilG

    NeilG LawnSite Member
    Messages: 63

    Image will do a fairly good job on Poa, and it tends to be safe on Bermuda. However, I agree with the previous post, it will die out when the temps get in the mid 80's. Pre-Emergent in Fall will keep it from coming back next year.

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