roundup...

Discussion in 'Pesticide & Herbicide Application' started by jose85, Feb 20, 2009.

  1. jose85

    jose85 LawnSite Member
    Posts: 214

    well i'm using roundup on my first round...when is the best time to pull off...i live in oklahoma city ...and saw the weather for next week and going to start heating up in mid 60 for th week but the morning will be 30-40 degrees...how more weeks do i have maybe two more? thanks
     
  2. VARMIT COMMISSION

    VARMIT COMMISSION LawnSite Senior Member
    Posts: 547

    What rate are you using? I have backed off my rate but am still using round-up. We had two nights in the 20's this week. If I pull up to a lawn that has already been scalped I skip it. I dont want to put roundup on the new green shoots. Now if there is 3 inches of thatch or dead grass on top then yal I spray it. Check out the oklahoma mesonet the ground temps at 2 inches are higher than they were at this time last year. Last year I sprayed roundup up until the 15th of March. Not this year, gunna have to pull it out of the mix earlier.
     
  3. jose85

    jose85 LawnSite Member
    Posts: 214

    yea this yards havent been scalped but ...they will be in about 1 week from now...so thats why i want to see if its still kewl to do it....rate is 48 oz per acre or 100 gals when do u think ur pulling off
     
  4. hmartin

    hmartin LawnSite Senior Member
    Posts: 590

    16 oz per acre of 41% glyphosate is the label rate for applications on dormant bermuda, and that is really all the chemical that you need to get good results on winter grasses. Spraying more roundup than necessary, especially as the bermuda is coming out of dormancy, isn't beneficial.

    In North MS, I recently used roundup on a few new accounts for poa and other winter grasses, but the time has pretty much passed to keep doing this.
     
  5. VARMIT COMMISSION

    VARMIT COMMISSION LawnSite Senior Member
    Posts: 547

    I agree with 1 pint per acre. I spoke to another lco last week and he was spraying 2 quarts and acre. I asked why? He said because Lesco told me to. And 2 quarts of 3-way and 2 quarts of surfractant per acre. Poor guys get'n raped by Lesco.
     
  6. jose85

    jose85 LawnSite Member
    Posts: 214

    so 16 oz per 100 gals of round ...? or qt for 100 gals i spray around 2 gal a min maybe little more...and i'm also using 3 way but umm thats 32 oz per 100 gal and umm pre m 48oz per 100 and umm surf 32 oz per 100 gal and umm paint 32 oz per 100 gals on my first app...
     
  7. jose85

    jose85 LawnSite Member
    Posts: 214

    i think this will be the last week i use all this applications ...and then i'm dropping roundup off... what do yall think and about the ratio i'm using on my applications
     
  8. VARMIT COMMISSION

    VARMIT COMMISSION LawnSite Senior Member
    Posts: 547

    How much water are you spraying per 1000 square foot? Regardless of chemical!
     
  9. VARMIT COMMISSION

    VARMIT COMMISSION LawnSite Senior Member
    Posts: 547

    Its not how much per 100 gallons. Its how much per 1000 square foot. Or how much per acre. The water you use to cover a certain area weather it is 1000 square foot or an acre 43560 square foot. Then that will tell you how much roundup or 3-way your using. Per 100 gallons means nothing. How much water do you use to cover an acre? Or 1000 square foot. You spray about 2 gallons a minute. How much area do you cover in a minute?
     
  10. jose85

    jose85 LawnSite Member
    Posts: 214

    1000 sq feet....its around 2 gal or 2.2 gals ...thats why i said 100 gals per acre
     

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