test herbicide combinations

Discussion in 'Pesticide & Herbicide Application' started by RigglePLC, May 23, 2013.

  1. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,808

    I tested Quicksilver and different herbicides. Left to right.
    Quicksilver and a 3-way,
    Quicksilver and T-Zone,
    Quicksilver and Speedzone.

    Weeds were mostly violets with a few chickweed and veronica.
    T-Zone and Speedzone with Quicksilver were highly effective, but I was not able to judge long term results.

    Second photo shows injury to the grass, however there was good weed control on dandelion. Treatment combined Drive, Speedzone, T-Zone, and Quicksilver. Clearly, too much herbicide.

    Third photo shows Drive plus Quicksilver; dandelion rapidly turned completely brown, (after about 48 hours).



  2. n-green

    n-green LawnSite Senior Member
    Messages: 367

    What happened with the 3way combo?
  3. vaacutabove

    vaacutabove LawnSite Bronze Member
    Messages: 1,011

    rig. have you ever done any test with a simple 3way and chaser or even better just the Triclopyr Im debating going out with this this year if I can but my test yards all all weed free now.
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,808

    I have not done test with triclopyr by itself. I have tested Confront in the past year or two. Remember T-Zone includes triclopyr.
    Triclopyr by itself is probably not labeled for turf.
    Since Chaser includes 2,4-D, if you add it together you may go over the 2,4-D limit for the year. It is difficult to find a combination that sits all the needs yet is within restrictions.
  5. vaacutabove

    vaacutabove LawnSite Bronze Member
    Messages: 1,011

    I was looking at doing it .75 oz each or less and I have not seen a label for it I guess I just assumed it was I got a price from a rep I check.
  6. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,808

    Last edited: May 24, 2013
  7. cecropia11

    cecropia11 LawnSite Member
    Messages: 103

    I use crossroads herbicide which is the same chemistry as Chaser, and at 2 Oz per gallon per 1000k Ft it always kills everything wild violet, henbit, and spurge and other hard to kill weeds and always knocks them out. I have used Tzone and for the price I do not understand why anyone would not user crossroads or chaser, the only thing your going to do with the Sulfentrazone of 0.73% that the Tzone has is slow the spread of crabgrass and nutsedge but at that rate of sulfentrazone it will not have much affect on crabgrass, the double amount of Triclopyr the crossroads has makes up for the sulfentrazone and the Dicamba acid that the Tzone has for hard to kill broadleaf weeds. I have also used Trimec 992, and they do not compare to crossroads on hard to kill weeds

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