Help ID this weed

Discussion in 'Florida Lawn Care Forum' started by flightjunkie, Apr 6, 2012.

  1. flightjunkie

    flightjunkie LawnSite Member
    Posts: 4

    Can someone please help me ID this weed and recommend an effective treatment? It's from a lawn in South Florida. Thanks

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  2. soddog#1

    soddog#1 LawnSite Member
    Posts: 15

    Posted via Mobile Device
     
  3. easy-lift guy

    easy-lift guy LawnSite Gold Member
    Posts: 3,376

    Chick weed, I believe. I have in the past for my own lawn used Atrazine. Good Hunting.
    easy-lift guy
     
  4. Greg Amann

    Greg Amann LawnSite Member
    Posts: 161

    Without flower to help id. I'm guessing Alligator weed.
    We have been fighting it the last several years. Speedzone is the only thing we have found that knocks it good.
     
  5. Duekster

    Duekster LawnSite Fanatic
    from DFW, TX
    Posts: 7,961

    Looks kind of like the weed of the week on weed alert
     
  6. Duekster

    Duekster LawnSite Fanatic
    from DFW, TX
    Posts: 7,961

    Speed zone southern? St Augustine grass is killed by Speed Zone
     
  7. Duekster

    Duekster LawnSite Fanatic
    from DFW, TX
    Posts: 7,961

  8. Ric

    Ric LawnSite Fanatic
    Posts: 11,956

    Duekster

    Speed zone southern is a 3 way herbicide that has had a St Augustine Label until some one in the Tampa area over applied it in hot weather. As result Gordon's took St A. off the label as a tolerant turf. It is still labeled for turf and therefore both legal and effective weed killer on St Augustine if applied correctly.

    BTW there are still a few non name brand 3 way herbicides with St A. still on the label.
     
  9. flightjunkie

    flightjunkie LawnSite Member
    Posts: 4

    Thanks everyone for all your assistance. I was able to find a strand that had a flower so here it goes.

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  10. Greg Amann

    Greg Amann LawnSite Member
    Posts: 161

    Yes Speedzone Southern.
    We stop applications with it when temps. get above 85 degrees high during the day. We add a little surfactant with it as well and have great results on alligator weed.
    Had you applied Atrazine or Simazine to the areas in the picture? That is the effect we see after an application of either one of those products. Yellowing of the veins almost like chlorosis.
    Here is a link to check out. http://plants.ifas.ufl.edu/node/33 Check out the video on the right hand side of the page. It may help you with a positive i.d.
     

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