Garlon 4 Ultra Herbicide - Questions & Answers

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  • Asked by Rodney from Lancaster
    12/12/2017
    Q
    How much Garlon 4 do I use to one gallon of water to kill small seedlings ( Pine, Cedar, etc.)?
    what is the ratio for a 4 gal sprayer? how many ounces per gallon. I have a bunch of trees 1-6 inches in diameter
    A

    For lower volume basal stem applications of Garlon 4 Herbicide to control seedlings, you would use 20-30 gallons of Garlon 4 in enough oil to make 100 gallons of solution. This breaks down to 25-38 oz of Garlon 4 per gallon of oil solution. Per page 7 of the product label under "Low Volume Basal Bark Treatment": Spray the basal parts of brush and tree trunks to a height of 12-15 inches from the ground in a manner that thoroughly wets the lower stems, including the root collar area, but not to the point of runoff.

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    10 of 40 people found this answer helpful.
  • Asked by Alex
    04/25/2019
    Q
    Will Garlon 4 kill grasses?
    A

    Garlon 4 Ultra Herbicide is labeled to treat woody plants, annual and perennial weeds on roadsides, railroads, pipelines, industrial sites, forests, grazing areas, and rights-of-way such as power lines. It is not labeled for residential use. 

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    5 of 17 people found this answer helpful.
  • Asked by Landen from Hernando
    05/31/2019
    Q
    Will Garlon 4 Ultra work on Callery Pear trees using a hack and squirt method?
    Pasture management
    A

    Garlon 4 Ultra Herbicide is not labeled specifically for use with a hack and squirt method for tree control, but typically this is an effective application using triclopyr herbicides. Keep in mind that taller trees will still need to be cut and removed safely, so you would normally cut these trees and then treat the fresh cuts with the Garlon 4 diluted at 20-30 gallons in enough oil to make 100 gallons of solution. This breaks down to 25-38 oz of Garlon 4 per gallon of oil solution. 

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    4 of 5 people found this answer helpful.
  • Asked by Bob from Pennsylvania
    08/29/2019
    Q
    What is the rate of Garlon 4 per gallon when using the hack and squirt method for tree of heaven?
    A

    The Garlon 4 Ultra Herbicide label does not recommend the hack and squirt method for any plants. It is best applied as a basal bark spray or as a stump treatment. If you are wishing to not cut the trees down first, you can follow the basal bark spray directions of the product label. If you wish to make hacks in the tree trunk prior to the bark spray you can do this as well. Per the label, it is best used on trunks 6 inches in diameter or less. Trunks with larger diameters should really be cut down to a stump and then applied at the recommended stump treatment rate. 

     

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    3 of 6 people found this answer helpful.
  • Asked by Linda from Phoenix, Az
    11/29/2019
    Q
    Will Garlon 4 kill globe chamomile?
    A

    Globe chamomile or stinknet is an invasive plant only found in a few areas in the US right now, so it will not be on the label for Garlon 4 or any other herbicides at this time. Several articles do recommend using a triclopyr product such as Garlon 4 to control this plant, however. You can read more about this plant in this article. We also recommend contacting your local Cooperative Extension office here for more information on what has been effective in treating this plant in your area.

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    3 of 5 people found this answer helpful.
  • Asked by Joe from Sudbury, Ma
    11/24/2016
    Q
    Will Garlon 4 Ultra Herbicide eradicate buckthorn?
    A

    Yes, Garlon 4 Ultra Herbicide is labeled to treat buckhorn. The label recommends to use at 1 to 8 quarts per acre to control broadleaf weed and woody plants. It is suggested that rates higher in this rate range be used to control woody vegetation.  

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    3 of 7 people found this answer helpful.
  • Asked by Gary from Franklin, Ma
    05/28/2018
    Q
    Will Garlon 4 Ultra Herbicide kill asiatic bittersweet?
    A

    Garlon 4 Ultra Herbicide is not labeled for asiatic bittersweet.

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    2 of 3 people found this answer helpful.
  • Asked by Jody
    07/10/2019
    Q
    Is it safe to spray Garlon 4 Ultra Herbicide under a tree for sweetgum?
    A

    While Garlon 4 Ultra Herbicide is labeled for Sweetgum, according to the manufacturer it is not recommended to use it around or under any desirable trees due to potential damage.

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    2 of 3 people found this answer helpful.
  • Asked by Keith from Milwaukee Wi
    02/20/2017
    Q
    Will Garlon 4 Ultra Herbicide kill poison sumac in a swampy area with a combination of cut and standing plants?
    A

    Garlon 4 Ultra Herbicide is labeled to control woody plants such as sumac and permitted to be used in swamp areas. Please refer to page 5 of the product label for mixing rates. 

     

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    1 of 4 people found this answer helpful.
  • Asked by Steve from Tarpon Springs, Fl
    09/02/2018
    Q
    Does Garlon 4 Ultra Herbicide kill Torpedo grass (Florida)?
    A

    Garlon 4 Ultra Herbicide is not labeled to eradicate torpedograss. Unfortunately, most of the herbicides will only suppress the torpedograss for a short time, but will not kill it completely. It is recommended to spot treat the torpedo grass with a non-selective herbicide such as Round Up Quick Pro and then re-seed or re-sod in those areas.

     

     

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    1 of 2 people found this answer helpful.
  • Asked by Chris
    11/14/2019
    Q
    Can Garlon 4 Ultra Herbicide be applied in the winter?
    A

    Garlon 4 Ultra Herbicide should be applied when weeds are actively growing and temperatures are between 65 and 85 degrees.

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    1 of 2 people found this answer helpful.
  • Asked by Amy from Nys
    09/11/2019
    Q
    How much Garlon 4 Ultra, water and/or oil should be used to foliar treat 2 acres of oriental bittersweet?
    A

    Garlon 4 Ultra Herbicide is not labeled to control bittersweet so we are unable to provide a rate for this use.  Asiatic/Oriental Bittersweet is an invasive species and difficult to eradicate and control. We recommend that you speak to the manufacturer Dow AgroSciences for information on treating with Garlon as it is not listed on the label. They can be reached at 800.992.5594.

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    1 of 3 people found this answer helpful.
  • Asked by Stu from Crawfordville, Fl
    08/07/2019
    Q
    Should I use Garlon 4 or Garlon XRT to control smilax?
    Which concentration of Garlon, 4 or XRT, may eradicate the Smilax briar in north Florida? Does the application of Garlon require a surfactant to be effective?
    A

    Unfortunately, Garlon 4 Ultra Herbicide is not labeled to control smilax/greenbriar. We do not carry Garlon XRT, but it’s unlikely this would be labeled for control, either. Smilax is very difficult to control and usually requires a combination of digging and possibly mutiple herbicide applications over several years to eradicate the root system completely. The only product we have labeled for this plant is TVC Total Vegetation Killer. This product stay in the ground for up to one year, so you would only want to use it in areas where you don’t have or want any desirable plants for at least this long. 

    This blog post has some great accounts of treating this plant. And this guide from the UGA Extension has some great insight, too. We always recommend contacting your local Cooperative Extension for further assistance with tough weeds like this one in your area.

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    1 of 2 people found this answer helpful.
  • Asked by John from Shickshinny
    03/12/2016
    Q
    Will Garlon 4 Ultra Herbicide kill Russian olive?
    A

    Garlon 4 Ultra Herbicide is not labeled to control Russian Olive.  Weedmaster is a comparable product we carry that is labeled for it and can be used in many of the same areas.

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    1 of 2 people found this answer helpful.
  • Asked by David from Destin, Fl
    10/05/2018
    Q
    Will Garlon 4 kill Asiatic Jasmine?
    If so, how long does it take?
    A

    Garlon 4 Ultra Herbicide does not list that is controls Asiatic Jasmine.  You may try reaching out to the manufacturer to confirm if it could be used for it.  Dow can be reached at 800-992-5994

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    1 of 2 people found this answer helpful.
Displaying 1 to 15 (of 15 questions)