Poa control

Discussion in 'Pesticide & Herbicide Application' started by lawnrx, Jan 18, 2014.

  1. lawnrx

    lawnrx LawnSite Member
    from ga
    Posts: 137

    I'm thinking of spraying simazine on bermuda grass in GA for Poa. I sprayed this past Oct but I think because of the rain we had here there was some Poa break thru. I don't normally spray simazine now. But just wondering if I did, Would this delay spring green-up in my bermuda grass this year? I just need to spot spray some areas that had some break thru. Really not many yards. Any opinions..
     
  2. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    Glyphosate would be a much easier, more effective alternative as long as it is Only Dormant Bermuda and nothing else as far as grass types.
     
  3. georgialawn88

    georgialawn88 LawnSite Bronze Member
    Posts: 1,075

    lawnrx, simazine is fine right now just get it soon before it seeds out. I used spectacle this year and haven't seen not one bit of poa annua. something to consider for next year. simazine doesn't last long in the soil. Where at in ga are you?
     
  4. georgialawn88

    georgialawn88 LawnSite Bronze Member
    Posts: 1,075

    lawnrx, I sent you a pm. I see what you do/did for a career
     
  5. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Posts: 4,514

    Simazine, atrazine, gly on Bermuda,

    Maybe msm or celcius not sure about label.
     
  6. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    I have never had much luck with Atrazine or Simazine as a post control for Poa Annua. Atrazine used on Bermuda in transition scares me a helluva lot more than Glyphosate. If there is damage, it is much longer lasting. Certainty is labeled for post control of Poa(but is extremely slow in cooler temps) and of course, Revolver is labeled for it as well. Celsius and MSM are useless against Poa... Poa is not listed on the label for either and speaking from past experience, they do not work.
     
  7. jad004

    jad004 LawnSite Senior Member
    Posts: 282

    Attached is why I am not a fan of the Roundup Treatment even on Bermuda. It was 6 degrees for 2 days straight and has been under freezing everynight for 3 weeks. And still, Bermuda is green underneath. This is not next to the house or driveway or sidewalk. It is out in the middle of the lawn.
    With all of that being said, I usually still take the chance with roundup.

    grass.JPG

    grass.JPG
     
  8. grassmasterswilson

    grassmasterswilson LawnSite Platinum Member
    from nc
    Posts: 4,514

    I've always had very good results spraying atrazine. We use it in feburary up here for round 1.

    Here is the UGA recommendations. It's an iPhone app I have and it's great for weeds, disease and other turf issues.

    image.jpg
     
  9. jad004

    jad004 LawnSite Senior Member
    Posts: 282

    What's the app called?
    Posted via Mobile Device
     
  10. inzane

    inzane LawnSite Silver Member
    Posts: 2,359

    I was told by a bayer rep that even though poa isn't on the label that it does works on poa. supposedly she says that they don't have to list everything controlled on the label. so I gave it a shot. I used the max rate celsius with a little MSO on my neighbors lawn who had seen a little bit of poa breakthrough because he got a late start with the pre-emergent. I could see the few patches of poa from my office window, it drove me nuts.. so i finally decided to try and hit it with the celsius + MSO in November. It was SLOOOW but it actually did work for me.
     

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