Virginia Buttonweed

Discussion in 'Pesticide & Herbicide Application' started by tbrom, Feb 11, 2008.

  1. tbrom

    tbrom LawnSite Member
    from 77833
    Posts: 23

    I am looking for a good way to get rid of Virginia Buttonweed in an established St. Augustine lawn. It appeared last year in spots and now it is starting to pop up again. What works the best and when is it a good time to apply it? Thanks for the help!!!!
     
  2. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    Metsulfuron-methyl (Manor). It does a great job of controlling/suppressing Virginia Buttonweed. Spray it when everything is actively growing. Unfortunately, you will probably never eradicate it. You may have to spray it 2-3 times per season. It is safe in St Aug,Bermuda,Zoysia and Centipede.
     
  3. tbrom

    tbrom LawnSite Member
    from 77833
    Posts: 23

    Thanks for the information Ted!
     
  4. wrivers

    wrivers LawnSite Member
    Posts: 45

    This is all good info. The only thing I might add is try to hit it in May before it is in flower, then again in June. You said it is a lawn (i'm guessing residential), but if it's non-residential you can use Ronstar to stop it from coming from seed. The bad news is, if it is residential and you can't use Ronstar, there is going to be a lot of seed and subsequent applications. Just don't use too many SU apps/year or you'll have some yellow St. Augustine.
     
  5. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    Good news wrivers. Just thought I'd let you know. I saw something in my Landscape Management Magazine I got the other day that they are changing the label on Ronstar to include residentials. I'll take another look at it to get some specifics.
     
  6. wrivers

    wrivers LawnSite Member
    Posts: 45

    That IS good news. It'll help me out on a couple of lawns I'll tell you.
     
  7. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    I found it.
    It was in a column called " In the Know". Bayer Evironmental Science announced the label revision was recently approved by the EPA.
     

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