Tenacity Herbicide - Questions & Answers

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  • Asked by Joe from Woodbridge, Va
    09/12/2019
    Q
    Will Tenacity kill lespedeza?
    A

    Tenacity Herbicide is not labeled to prevent or eradicate lespedeza. Quali-Pro MSM Turf Herbicide may be a better option.

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    4 of 4 people found this answer helpful.
  • Asked by Jacqueline from Garden City, Mi
    10/03/2019
    Q
    Do you recommend Tenacity for fall application to Michigan grass?
    My yard is being overtaken with Creeping Charlie and wild violets (along with numerous other weeds). Thought if I applied this now, in the spring I could re-seed
    A

    The best temperature range to apply most herbicides, including Tenacity, is between 65-85 degrees. For the best specific application times for your region, we recommend contacting your local extension office directly and speaking with the Master Gardener.

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    4 of 5 people found this answer helpful.
  • Asked by Ray
    03/30/2020
    Q
    I applied Tenacity on my turf grass during the first week of March. At least 90% of the lawn is light yellow
    In color 3 weeks later. How long would it be before turf returns to green? I live in NJ.
    A
    Yellowing or whitening of the turf after a broadcast application of Tenacity Herbicide is caused by the loss of chlorophyll. The product label states, "Tenacity may cause temporary whitening of turfgrass foliage. In general, symptoms appear five to seven days after application and last for several weeks. A repeat application to the same site causes less whitening of the plant tissue."
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    4 of 6 people found this answer helpful.
  • Asked by Tim from Va
    08/02/2019
    Q
    Can I have a full list of weeds that Tenacity will control?
    Can Sedgehammer be used mixed/used at the same time as Tenacity?
    A

    You can find a full list of weeds Tenacity Herbicide targets here: Tenacity Product Label. There should not be any issues using Tenacity Herbicide and Sedgehammer Herbicide at the same time as long as the turf is established and not under other significant stress. Tenacity Herbicide states the following in reference to tank mixing. We always recommend doing a small tank mix test before application. 

    "Tenacity has been tested in tank mixtures with Barricade 65WG Herbicide (prodiamine), Vanquish® (dicamba), Turflon® ester (riclopyr), Spotlight™ (fluroxypyr), Quicksilver™ (carfentrazone), Basagran® (bentazon), Princep® (simazine), and AAtrex® (atrazine) for safety and efficacy on turfgrasses. Tenacity must be applied at reduced rates (4 fl. oz./A or less) if tank mixed with atrazine, bentazon or simazine. Other tank mixture partners may be safe but have not been tested. Turf managers wanting to tank mix Tenacity with other herbicides should test on a small basis for compatibility, safety and efficacy before treating large areas. See product labels for directions and precautions" 

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    3 of 3 people found this answer helpful.
  • Asked by Dennis from Sugarland, Tx
    08/06/2019
    Q
    Can Tenacity be used on a Bermuda lawn?
    A

    Tenacity Herbicide cannot be applied to Bermuda unless fully dormant.

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    3 of 5 people found this answer helpful.
  • Asked by Lynne from Niagara Falls, Ny
    08/12/2019
    Q
    Can Tenacity Herbicide be used on my grass that is Kentucky blue and rye grass?
    I put top soil on in the Spring and overseeded with what I thought was Kentucky blue grass. I now have a lot of crab grass that I want to get rid of.
    A

    Tenacity Herbicide is safe for established Kentucky bluegrass and ryegrass applications. 

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    3 of 3 people found this answer helpful.
  • Asked by Giovanna from Fishkill, Ny
    08/14/2019
    Q
    Can I use Tenacity Herbicide on Zoysia to get rid of wild violets? When can I reseed?
    A

    According to the product label: Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum and bermudagrass are sensitive to Tenacity applications. Avoid spraying these turf types unless control and/or injury can be tolerated. Maintain a five foot buffer between treated areas and bentgrass or Poa annua greens. While Tenacity is not labeled to kill zoysia it will most likely do so. 

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    3 of 3 people found this answer helpful.
  • Asked by Jodi from Van Dyne,wi
    08/15/2019
    Q
    Do I need to use surfactant or can the Tenacity be applied without it?
    A

    For best results, Tenacity should be applied along with a surfactant.  

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    3 of 5 people found this answer helpful.
  • Asked by Angie from Excelsior, Mn
    08/19/2019
    Q
    Is it safe to use Tenacity near a lake or water source?
    A

    Tenacity Herbicide should not be applied near a water source including a lake or area of runoff to avoid contamination.

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    3 of 4 people found this answer helpful.
  • Asked by Kyle from Lambertville
    08/29/2019
    Q
    Can you put to much Tenacity Herbicide down when sowing new seed?
    I sowed some new seed about 2 months ago. Tenacity worked great and the weeds that came up died in a few weeks. When I applied Tenacity I did go over the area once or three times. The grass is still there but there is some grass that looks like it died off.
    A

    Yes, it is possible for Tenacity Herbicide to inhibit growth of new seedings if over applied.

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    3 of 4 people found this answer helpful.
  • Asked by Pasquale from Kearny
    08/30/2019
    Q
    Can I spray Tenacity on my KBG and tall fescue grass after I sprayed Quinclorac about a week ago?
    I'm in NJ and it's late summer here. I have KBG and tall fescue in my lawn. I sprayed Quinclorac about a week ago to kill the crabgrass. Can I apply Tenacity now to kill the rest of the weeds so I can seed in about 3 weeks?
    A

    Yes, Tenacity Herbicide can be applied.  You would need to seed at the same time or wait until you seed in 3 weeks to apply.

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    3 of 3 people found this answer helpful.
  • Asked by Peter
    09/06/2019
    Q
    Should I mix, or shake the sprayer after I add the Tenacity prior to starting to spray?
    A

    When mixing concentrates such as Tenacity Herbicide, it is always a good idea to add some water to your tank, add your concentrates, agitate the mixture, and then fill the rest of the water and agitate again before spraying. This video has a great overview of how to use this product.

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    3 of 3 people found this answer helpful.
  • Asked by Gursagar from Ny
    09/09/2019
    Q
    Is Tenacity Herbicide an acidic or basic chemical? Should I use a plastic wand or can I use my metal wand for application purposes?
    A

    Tenacity Herbicide is not an acid.  You can use either type of wand with it with no issue.

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    3 of 4 people found this answer helpful.
  • Asked by Ben from Winston-salem
    09/11/2019
    Q
    Can Tenacity be mixed with Coron 18-3-6?
    A

    There should be no issues applying Tenacity around the same time as a fertilizer like the Coron, as long as both label instructions are followed.

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    3 of 3 people found this answer helpful.
  • Asked by Peter from Liberty Twp, Ohio
    09/12/2019
    Q
    Can you freeze 1 gal of properly mixed Tenacity Herbicide, in small spray bottles, to be used in the future?
    A

    Tenacity cannot be mixed and then frozen for future use as the freezing temperatures would make the product ineffective. 

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    3 of 4 people found this answer helpful.
  • Asked by Jeremy from Jacksonville
    10/02/2019
    Q
    Is Tenacity Herbicide ok to use in St Augustine grass?
    A

    Tenacity Herbicide is only for use on St Augustine when used in sod farms and cannot be used on residential St. Augustine lawns.

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    3 of 10 people found this answer helpful.
  • Asked by Douglas from Fremont, Ca
    02/10/2020
    Q
    Dose Tenacity control mallow (cheeseweed), scientific name malvasia species?
    A

    Tenacity is not labeled to control cheeseweed. The herbicides we carry that are labeled to control cheeseweed are Spectracide Weed and Grass Killer With Extended Control RTUGoal 2XL HerbicideRonstar 50 WSP, and Aim EC Herbicide

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    3 of 4 people found this answer helpful.
  • Asked by Glenn from Kirkland, Wa
    05/09/2021
    Q
    Can Tenacity be shipped to Washington state?
    A

    Yes, Tenacity Herbicide can be shipped to Washington state. 

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    3 of 6 people found this answer helpful.
  • Asked by Gloria from Winnetka, Il
    08/11/2013
    Q
    I keep bees in my back yard. Can I use Tenacity on the bentgrass without harming my bees?
    A
    Tenacity Herbicide could potentially harm bees if they come in contact with the treated area. We recommend contacting your local cooperative extension office and speak with the master gardener in your area for advice on product that will not harm bees.
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    3 of 6 people found this answer helpful.
  • Asked by Cheryl from Wilmington, Nc
    06/18/2014
    Q
    Is 90 degrees too hot to apply Tenacity to a St. Augustine lawn.
    A
    We do not recommend applying herbicides including Tenacity Herbicide in temps over 90 degrees.
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    3 of 3 people found this answer helpful.
Displaying 301 to 320 (of 595 questions)