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Please help. What is this grass?

Discussion in 'Turf Renovation' started by Green' Go, Apr 4, 2010.

  1. Green' Go

    Green' Go LawnSite Member
    Posts: 50

    This has completly taken over in small groups in my St. Augustine yard. I cant find what it is by searching through pictures on line.
    It has very small seeds on the seed heads.

  2. Green' Go

    Green' Go LawnSite Member
    Posts: 50

    I know the pics are fuzzy but I took them with my blackberry.

  3. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,211

    Looks lke Poa annua--or--annual bluegrass.
    It should fade out when the heat builds up--but it reseeds itself in the fall--it is a winter annual.
  4. Green' Go

    Green' Go LawnSite Member
    Posts: 50

    It just came on this week. How do I kill it without killing the St. Augustine? I 2-4-D'd this about a week ago and the other junk grass is dying off nicely. But this is coming in now like crazy. I looked it up online and it suggests a preemergent herbicide in early spring and again inlate fall. Sound right to you all?
    Last edited: Apr 4, 2010
  5. dave k

    dave k LawnSite Bronze Member
    Posts: 1,178

    Image or Certainty works good, but with the heat coming on it will die off pretty quickly, Use Pre emergent
  6. cgaengineer

    cgaengineer LawnSite Fanatic
    Posts: 15,782

    Its gonna die when the temps are int the 80's and 90's...your best bet is to leave it for now and prevent it next season. Its likely already dropped its payload anyway so you will get a visit from its siblings next season.

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