id this pic. green blouches in lawn

Discussion in 'Pesticide & Herbicide Application' started by ant, Apr 30, 2004.

  1. ant

    ant LawnSite Silver Member
    Posts: 2,432

    light green blouches 1'-2' round in some back lawns.
    when tall it feels like fescue.:confused:

    green.jpg
     
  2. ant

    ant LawnSite Silver Member
    Posts: 2,432

    pic 2
    of the back lawn
     
  3. TurfProSTL

    TurfProSTL LawnSite Senior Member
    Posts: 693

    Do they have dogs?
     
  4. LawnJohn

    LawnJohn LawnSite Member
    from Atlanta
    Posts: 147

    I have a few in my back yard.....no dogs.. I'm thinking iron dificiency, the pH is off or both.
     
  5. KenH

    KenH LawnSite Bronze Member
    from CT
    Posts: 1,622

    My guess, but the picture is terrible, creeping bent???
     
  6. TNLC

    TNLC LawnSite Member
    Posts: 5

    It is rough stalk blue grass. I just dealt with it in sod that I did in the fall. The sod farm is replacing it all for me. There was a bad out break this year. It seems to be popping up everywhere this spring.
    The only thing you can do is wipe it out and reseed before it goes to seed.
    Good luck.
    TNLC in NJ
    :eek:
     
  7. GroundKprs

    GroundKprs LawnSite Bronze Member
    Posts: 1,969

    Any ID from the photo above is a pure guess. Grasses are identified by using a turfgrass ID key, looking at the distinctive parts of the plant under magnification.

    Roughstalk bluegrass, Poa trivialis, does not spread by seed in lawns - they never get tall enought to go to seed. The main reason for the spread of poa triv in mowed turf is contamination in seed lots. There is a market for poa triv seed, but the seed industry is moving to quarantine the installations where poa triv seed is processed, in order to prevent this contamination.
     

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