crabgrass in fields

Discussion in 'Sports Field Management' started by superintendent, Jul 10, 2010.

  1. superintendent

    superintendent LawnSite Senior Member
    Messages: 394

    I have two fields that crabgrass just won't die. I have sprayed drive and MSMA and nothing. I'm thinking about going out again with MSMA but it alittle to hot and dry I believe for it now. What are yall doing on the crabgrass?
  2. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

  3. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

    but i guess drive (quinchlorac) and the ai for crabgrass in q4 are the same

    but i have heard the sulfentrazone helps the quin along
  4. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

    EPA Reg. No.

    Gallon; 4/case, ship wt 43 lbs
    2.5 Gallons; 2/case, ship wt 50 lbs
    30 Gallons; ship wt 295 lbs

    Spanish MSDS
    Specimen Label
    Spanish Specimen Label
    Product Information Sheet

    Turf Herbicide for Grassy & Broadleaf Weeds

    For the suppression of yellow nutsedge, control of certain grassy weeds, such as crabgrass and foxtail, and control of most troublesome broadleaf weeds species in established cool-season turf areas. Use sites include golf courses, lawns, cemeteries, public parks, sports turf, sod farms and other sites.

    Post-emergent yellow nutsedge suppression, crabgrass control, plus broadleaf weeds – FAST!

    Q4® Turf Herbicide is a patented product containing four (4) active ingredients: Quinclorac + Sulfentrazone + 2,4-D + Dicamba. A precision product, Q4 joins Gordon’s other fast-acting products in the ProForm® line-up, SpeedZone®, PowerZone®, SpeedZone® Southern and Surge® herbicides.

    University data and cooperator tests have demonstrated consistently enhanced speed compared to other water-based products in controlling labeled weeds. Like Surge, Q4 is ‘energized with sulfentrazone’ for fast acting nutsedge suppression. And warm-weather broadleaf weeds will turn brown, dry up and blow away.

    But Q4 also contains quinclorac, so users can control grassy weeds such as crabgrass and foxtail, which will turn ghostly pale prior to reddening and subsequent death. These two ingredients — sulfentrazone and quinclorac — in combination create a synergistic activity which enhances crabgrass control. Adding precise ratios of 2,4-D and dicamba broadens the weed control spectrum and adds systemic activity to the contact activity of sulfentrazone for multiple modes of action. Q4 provides outstanding control of broadleaf weeds such as dandelion, clover, spurge, knotweed and plantain. This all-in-one product has become known as the "army knife" of turf herbicides.
  5. sweetjetskier

    sweetjetskier LawnSite Senior Member
    Messages: 404

    I don't know about where are,but here in CT it has been very,very dry and turf is heading into dormancy in many areas.

    If its as dry where you are,the weeds will not take up herbicides very well as they are probably dormant and drought stressed, so spraying again won't help you.
    My 2 cents
    Posted via Mobile Device
  6. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

    i would hope that sports fields are well irrigated and ferted
  7. sweetjetskier

    sweetjetskier LawnSite Senior Member
    Messages: 404

    Irrigation systems are not installed on as many fields as one would think. We have worked on many fields and only a handful have irrigation or a properly operating system.
    We are seeing now that even if they have one, the systems are turned off, budget cuts, not having a huge water bill for irrigation only.
  8. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

    out of my 6 fields , 5 have it

    2 of those are malfunctioning

    1 has to be turned on manually (part of our job now)

    and one refuses to turn on

    so youre right
  9. ramsbaseball

    ramsbaseball LawnSite Member
    Messages: 9

    Where can this product be purchased?
  10. dgw

    dgw LawnSite Bronze Member
    from OH
    Messages: 1,008

    wherever you get your chemicals should have it

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