Triazine or Sulfonylurea family of herbicides?

Discussion in 'Pesticide & Herbicide Application' started by RobHawkins, May 15, 2008.

  1. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    I'm still looking for a way to kill the Orchardgrass in my Tall Fescue.
    NCSU Turf Files is a great source of information for lawn and turf in North Carolina.
    However, there is little information there for controlling this weed.
    Here is what I found...

    ...Can anyone give me a "brand name" for the Triazine or Sulfonylurea family of herbicides?
     
  2. PSUTURFGEEK

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    Velpar is one pretty common brand name for this class.
     
  3. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    Velpar looks like some nasty stuff. And, it looks like it stays around for a long time. But it does say it kills Orchardgrass although some damage will occur to Tall Fescue.
    Thank you for that info.
    Anyone else have anything to add?
    What about MSMA?
    Rob
     
  4. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    Anyone familiar with these herbicides?
     
  5. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,534

    Atrazine and simazine are of the triazine family. Escort(Metsulfuron) is the same as Manor, Mansion,MSM, Blade. Sulfonylureas are Metsulfuron, Halosulfuron (Manage, Sedgehammer), Sulfosulfuron (Certainty) and others I'm sure. You'd just have to check labels. good luck
     
  6. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    Thank you Ted.
     
  7. n-green

    n-green LawnSite Senior Member
    Posts: 362

    I'm with you Rob. I started a thread last year. After the 2006 season a few of my lawns I seeded with Transition Blend (including mine) had Orchardgrass. I seeded about 100 others with the same stuff with no problems. No selective herbi is labeled to kill it. Va Tech tested a new product, Mesotrione which will be labeled to suppress Orchardgrass in cool season turf. Good luck and use only certified seed.
     
  8. Harley-D

    Harley-D LawnSite Senior Member
    Posts: 508

    n-green,
    "will be labeled?" Is it registered? Where can you get it?
    Tons of problems with orchard here in c.va.
    Heard that none of the sedge controlers work. manage, sedgehammer
     
  9. n-green

    n-green LawnSite Senior Member
    Posts: 362

    Harley,
    Tenacity by Syngenta was tested at VA Tech and they found that it suppressed (not controlled) Bermuda,Quack, and Orchard in cool season turf. When they wrote the article in March/ April the label was not available yet. I just got excited when I saw mention of Orchard Grass because it has given me such a headache. If you find something that works, please let us know.
     
  10. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    n-green,
    Can you post a link to that article from VA Tech? I'd like to read it.
    Thank you for the help.
    Orchardgrass must DIE! Tall Fescue must THRIVE!!!
    Rob
     

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