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need help with anual bluegrass suppresion

Discussion in 'Pesticide & Herbicide Application' started by hardcharger, Mar 5, 2006.

  1. hardcharger

    hardcharger LawnSite Member
    Messages: 16

    hey guys , im having trouble with annual bluegrass or ;poa,anna as they callit sometimes, im wanting a dirt cheap product and i want to keep the fescue around the area intact so roundup is not on the menu. any ideas? 24d wont kill it that i know of:) :confused:
  2. teeca

    teeca LawnSite Bronze Member
    Messages: 1,202

    dimension has always done good for me.
  3. teeca

    teeca LawnSite Bronze Member
    Messages: 1,202

    also, not sure of the turf in your area, but here in the north the best time to treat is as a pre-m. the poa dies-off after hard frost or after seedhead falls. post products get expensive, and depending on the temp and stress on the rest of the lawn, you may end up hurting it as well.
  4. hardcharger

    hardcharger LawnSite Member
    Messages: 16

    i did some pre emerge earlier in 2005 but i still have a few patches around i want someting post emergent and cheap, dimension works well im a day late and a dollar short so to speak:dizzy:
  5. ProLawns

    ProLawns LawnSite Senior Member
    Messages: 476

    The only post emergent that I know for poa annua is ethofumasate (prograss). I've never used it but I hear it works best if you spray in the fall, unfortunately it's expensive. I did the Dimension mid Aug then seeded 60 day later route last fall. It really cut down on the poa but the new fescue didn't establish as well as without the Dimension.
  6. ThreeWide

    ThreeWide LawnSite Bronze Member
    Messages: 1,116

    Never used prograss either, but I've read research data suggesting you can use it to supress seedhead production in the Poa. Not necessarily killing it, but if you supress the seedheads it becomes less visible in a stand of Fescue.

    It all depends on the application rate.

    Putting out a preemergent 60 days prior to seeding is a common practice, providing that you don't overapply. Anything over the lightest application rate will provide too much coverage into you seeding window.
  7. B&B

    B&B LawnSite Member
    Messages: 55

    Atrazine now & in Oct. It cost $10.00 per gal.
  8. ThreeWide

    ThreeWide LawnSite Bronze Member
    Messages: 1,116

    Can't do that on Fescue.
  9. John Gamba

    John Gamba LawnSite Fanatic
    from ct
    Messages: 10,812

    Core aerate the area first then cut the area very low and bag the seed heads.I have had very good luck in the past doing this.

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