What's the BEST total vegatation killer ???

Discussion in 'Pesticide & Herbicide Application' started by RobHawkins, May 10, 2008.

  1. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    I see non-selective herbicides with Diquat, Glyphosate and both as active ingredients.
    What can I spot treat my Orchardgrass with to kill it totally? I want to wipe the herbicide on the upper leaves to carefully touch only the Orchardgrass and not the Tall Fescue.
    What BRAND of herbicide would you use in this situation?
    Thanks,
    Rob
     
  2. Firefighter337

    Firefighter337 LawnSite Senior Member
    Posts: 373

  3. Firefighter337

    Firefighter337 LawnSite Senior Member
    Posts: 373

    Sahara will kill something to desert. Might not be best in your application.
     
  4. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    Roundup Plus is 0.73% Diquat and 18% Glyphosate. Roundup Concentrate is 50% Glyphosate.
    Spectracide Tripple Strike is 2.3% Diquat Dibromide.

    I don't want to kill the good stuff in the soil. Just the Orchardgrass.

    Glyphosate or Diquat?
     
  5. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    I bought a product called Sideswipe Pro Herbicide Applicator so I could brush the herbicide across the tops of the weeds because they grow taller than the fescue in my lawn. Here is a link to the Sideswipe Pro...

    http://www.forestry-suppliers.com/product_pages/View_Catalog_Page.asp?mi=8273#

    ...I hope to reduce the numbers of Orchardgrass weeds in my lawn until late Summer. Then I'll spot spray what's left with a backpack sprayer. Then re-seed in September.
     
  6. bam

    bam LawnSite Senior Member
    from .
    Posts: 261

    sahara is a soil sterilant and will kill anything it touches including mature trees. Unless the soil is excavated out, you won't grow anything in it for 8-10 months.
     
  7. Firefighter337

    Firefighter337 LawnSite Senior Member
    Posts: 373

    :clapping: I used it for larger properties around the fence lines. Saved tons of time.
     
  8. humble1

    humble1 LawnSite Silver Member
    from MA
    Posts: 2,495

    flame thrower works good
     
  9. OSCLandscaping

    OSCLandscaping LawnSite Member
    Posts: 60

    Round up with Diquat I have found will burn the vegitation out before allowing the roots to die. Resulting in the weeds coming back. I have swithched back to Roundup Pro, just the Glyphosate. Seems to work better for me.
     
  10. RobHawkins

    RobHawkins LawnSite Member
    Posts: 52

    OSC,
    Thanks. I found that Diquat burns the leaves so you see results quickly. But like you said, Glyphosate kills the roots for a permanent removal.
    I have a lot of Orchardgrass. I'm letting it grow so I can wipe the seedheads with 41% Glyphosate.
    Thanks for the help.
    Rob
     

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