killing sedges w/Roundup

Discussion in 'Pesticide & Herbicide Application' started by khutch, Aug 28, 2004.

  1. khutch

    khutch LawnSite Senior Member
    Posts: 495

    Never had sedge in Bermuda lawns like this year. Can't remember if the sedge dies or goes dormant during the winter. I hope it lives so I can KILL it w/Roundup! I'm hearing control of sedges is just about a waste of time and product right now. What are some of everybodies strategies for sedge control, end of season?
     
  2. out4now

    out4now LawnSite Bronze Member
    from AZ
    Posts: 1,796

    Round up is non-selective so it will kill your bermuda. Dr. Kopec at University of Arizona always told us to use a product called Manage in his seminars, and it seems to work effectively over time. Tough to get rid of it once it's established.
     
  3. JoeinJasper

    JoeinJasper LawnSite Member
    Posts: 173

    You can also use Image, or MSMA to control sedges in bermuda.
     
  4. gravedigger5

    gravedigger5 LawnSite Senior Member
    Posts: 505

    We had an over abundance of yellow nutsedge this year and ended up using Manage cause that was what everybody recomended. Worked great. Mowed the yards several days later and the nutsedge never came back, DEAD. Did not notice any damage to the turf grass at all, either. Even when I got back to the shop to rinse the tank out, I sprayed the tank rinse on my own yard and it wiped out the nutsedge the same as the regular dose. Marc

    P.S. I would not use roundup on any surface I did not want to kill.
     
  5. grassguy_

    grassguy_ LawnSite Senior Member
    from Ohio
    Posts: 633

    Use Manage or Basagran, both do a decent job. Round up usually wont get a good kill on yellow nutsedge, just to hard to get the nutlet destroyed below the surface, where Manage will get down into and usually burn the nutlet out.
     
  6. khutch

    khutch LawnSite Senior Member
    Posts: 495

    Let me reword that - I of course mean when the Bermuda is dormant - spray the sedge with round-up. Lot cheaper and much quicker than Manage?
    I just hear Image and some of the others take time, time, time. I was thinking an advantage of dormant Bermuda is you can zap about anything in the yard w/a non-selective....
     
  7. GroundKprs

    GroundKprs LawnSite Bronze Member
    Posts: 1,969

    Yellow nutsedge is a warm season plant. It will go dormant along with, or probably even before your bermuda, so the dormant Roundup app will get you nowhere.

    Use Manage during the summer when it is actively growing. Basagran will also work, but is not as effective in getting rid of the nutsedge. Don't plan on a single app of Manage fixing the problem. I have taken up to 4-5 years to knock down established yellow nutsedge to the point that you can pull the few that appear.
     
  8. GroundKprs

    GroundKprs LawnSite Bronze Member
    Posts: 1,969

    Yellow nutsedge is a warm season plant. It will go dormant along with, or probably even before your bermuda, so the dormant Roundup app will get you nowhere.

    Use Manage during the summer when it is actively growing. Basagran will also work, but is not as effective in getting rid of the nutsedge. Don't plan on a single app of Manage fixing the problem. I have taken up to 4-5 years to knock down established yellow nutsedge to the point that you can pull the few that appear.
     
  9. GroundKprs

    GroundKprs LawnSite Bronze Member
    Posts: 1,969

    Yellow nutsedge is a warm season plant. It will go dormant along with, or probably even before your bermuda, so the dormant Roundup app will get you nowhere.

    Use Manage during the summer when it is actively growing. Basagran will also work, but is not as effective in getting rid of the nutsedge. Don't plan on a single app of Manage fixing the problem. I have taken up to 4-5 years to knock down established yellow nutsedge to the point that you can pull the few that appear.
     
  10. Neal Wolbert

    Neal Wolbert LawnSite Senior Member
    Posts: 407

    Yellow nutsedge reproduces from nutlets on the roots. They can begin to form at the 4-6 leaf stage which is pretty early on. Try to do your Manage spray when you first see the plants and spray again when you notice any new plants. My company treated an abandonded 27 acre nursery three times a year for several years and new plants kept coming every year. They decided to take over in-house and I'm not sure how things went after that. For sure it is a terrible, tough weed. Make sure you don't use silicone surfactant with Manage, it will lessen the control. Neal
     

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