Weed control burn

Discussion in 'Pesticide & Herbicide Application' started by SeanFromEvergreen, Nov 9, 2018.

  1. SeanFromEvergreen

    SeanFromEvergreen LawnSite Member
    Messages: 4

    Recently Fertilized a lawn in the northeast with 25-0-5, and sprayed with T-zone (1.3 oz per 1000) from my Z-spray. This is my first year using the z-spray and not sure exactly what happened. Any thoughts? Also what should I do to fix this?

    Thank You IMG_6142.JPG IMG_6136.JPG IMG_6138.JPG
  2. agrostis

    agrostis LawnSite Silver Member
    Messages: 2,779

    Is that streak 2 sprayer widths in the first picture ?
  3. SeanFromEvergreen

    SeanFromEvergreen LawnSite Member
    Messages: 4

    Yes. The entire lawn was sprayed even the unaffected areas.
  4. agrostis

    agrostis LawnSite Silver Member
    Messages: 2,779

    So a z-spray has 2 flood nozzles that are out in front of you, right ?
  5. SeanFromEvergreen

    SeanFromEvergreen LawnSite Member
    Messages: 4

    4 nozzles in front of the machine
  6. ETM

    ETM LawnSite Bronze Member
    from GEORGIA
    Messages: 1,873

    Never I mean never run fert out of a rideon. Burn is what you get. Mix to hot
    wjjones likes this.
  7. wjjones

    wjjones LawnSite Senior Member
    Messages: 554

  8. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 15,356

    Did you mean to say you were using granular 25-0-5? Or liquid?
    ETM makes a good point. At least you applied it evenly. This could be due to inadequate mixing--not enough agitation.
    The T-Zone could have been mainly in the bottom inch of the tank.
    Maximum rate is 1.2 ounces per thousand. Is your calibration near perfect?

    Did you fill by pouring into the tank--or mix in a nurse tank?
    True--I did something similar a few years ago, but using Lesco Eliminate (which includes triclopyr). The lawn had a fair percentage of bentgrass. (Permagreen, granular fertilizer, liquid weed control; filled the tank (mix in tank) just before starting).
    Last edited: Nov 10, 2018
    hort101 likes this.
  9. That Guy Gary

    That Guy Gary LawnSite Silver Member
    Messages: 2,412

    Max for T-zone on cool season turf is 1.5oz/1k.

    Did you use any adjuvants? How was the weather? Is it irrigated? What species of turf?

    There is a good chance it's not dead but you probably won't see much new growth this late in the season. I've never had it happen to me but the T-zone label states that injury can occur during very low temps and drought conditions.

    What nozzles did you use, what pressure did you run, how many 1k per gallon did you mix for?
  10. klsgc

    klsgc LawnSite Senior Member
    Messages: 330

    We get tip burn at full rate on tzone on cool season tips if temps are over 75

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