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Tenacity Herbicide - Questions & Answers

Learn more about Tenacity Herbicide

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Tenacity Herbicide
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Displaying 201 to 220 (of 679 questions)
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  • Asked by Terry from St Paul, Mn
    08/17/2015
    Q
    When do I apply Tenacity Herbicide for bent grass?
    I have bent grass that is now brown. Is it dormant? When is "just before dormancy?"
    A

    If you are trying to apply Tenacity Herbicide to control bentgrass, per the product label:

    "Apply Tenacity at 5 fl. oz. per acre in at least 30 gallons of water per acre at two to three week interval for up to three applications. Apply with a NIS surfactant. Bentgrass control may be more effective in the late summer/early fall just prior to onset of renewed bentgrass growth, than spring/early summer applications."

    You can also call our Customer Service staff at 866-581-7378 M-F 9a-5p EST if you have further questions.

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    8 of 9 people found this answer helpful.
  • Asked by John from Great Neck, Ny
    10/27/2015
    Q
    What are the application instructions for Tenacity on fine fescue turf?
    My lawn is fine fescue, and I overseed every spring and sometimes in fall. The label states not to use Tenacity at the same time as seeding fine fescue. Thus, what would be the best strategy to use Tenacity on my lawn for pre and post-emergent purpose? Should I look for an alternative product?
    A

    Per the Tenacity label, you will not exceed 5 fl. oz. of product per acre for fine fescue. This is just the max amount that should be used per year and per acre. The rate that should be used is you will need to mix 0.5 tsp of Tenacity and 1.5 tsp of surfactant to one gallon of water covering 1,000 sq ft. Also, Tenacity should NOT be applied at the time you are putting down new seeds or overseeding. This will likely inhibit their growth. You will want to wait until the lawn has been established before applying this product for pre-emergent control. This is generally after three mowings. There are no restrictions for Tenacity with regards to post-emergent control of weeds.

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    8 of 13 people found this answer helpful.
  • Asked by William from West Monroe, La
    07/26/2016
    Q
    How safe is Tenacity Herbicide to rid my crabgrass infestation in my Bermuda and Fescue lawn?
    A

    Tenacity Herbicide when applied per label will not harm established Centipede. Bermuda can be sensitive to Tenacity. 

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    8 of 9 people found this answer helpful.
  • Asked by Nilo from St.cloud, Florida
    03/27/2017
    Q
    Can I use Tenacity Herbicide on Bahiagrass?
    A

    No, Tenacity Herbicide is not labeled for application to bahia grass.

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    8 of 13 people found this answer helpful.
  • Asked by Bill from Minneapolis, Mn
    06/06/2017
    Q
    Does Tenacity Herbicide have any effect on quackgrass?
    I know the product is not listed for quack grass, but when I sprayed a patch, while spraying for bent grass, the tips of the leaves turned white. Would additional spraying have any beneficial effect?
    A

    Since quackgrass is not on the label to be controlled by the Tenacity, we cannot recommend you use it for this application. We do, however, carry Certainty, which is a selective post-emergent herbicide like Tenacity, that does have Quackgrass listed on the label under weeds controlled. You can see the dilutions and what grasses are tolerant of Certainty on the product label.

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    8 of 10 people found this answer helpful.
  • Asked by Julie from Sterling Heights
    07/28/2017
    Q
    Does Tenacity Herbicide kill prostrate spurge?
    A

    No, Tenacity Herbicide is not labeled for spurge.

     

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    8 of 8 people found this answer helpful.
  • Asked by Jim from Poland, Oh
    07/28/2017
    Q
    When can I reseed after applying Tenacity?
    A

    Tenacity Herbicide should be applied at grass seeding or close to seeding for best results. If you are not close, meaning within a week of application, then you would need to wait 6-8 weeks to re-seed. 

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    8 of 17 people found this answer helpful.
  • Asked by Marc from Chesaning, Mi
    06/23/2018
    Q
    Can Tenacity be tank mixed with 2-4D?
    A

    Per the manufacturer, " Tenacity has been tested in tank mixtures with Barricade 65WG Herbicide (prodiamine), Vanquish® (dicamba), Turflon® ester (triclopyr), 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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    8 of 71 people found this answer helpful.
  • Asked by Jacky from Elk Grove, Ca
    05/02/2019
    Q
    Are these the correct Pre-Emergent and Post-Emergent applications with Tenacity Herbicide?
    I wanted to confirm if I am correct with the following: Pre-Emergent -- when using as pre-emergent, you spray your entire lawn. Post-Emergent -- When using as post emergent, you will spot spray the weeds. Thank you,
    A

    In general, this is correct. Tenacity is typically only used as a pre-emergent when seeding or over-seeding with turf types that are listed as tolerant on the product label. For post-emergent weed control, you should just spot treat to avoid whitening on your desirable turf.

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    8 of 8 people found this answer helpful.
  • Asked by Joey from Waxahachie
    05/29/2019
    Q
    If I used Tenacity to treat an unseeded area, how long should I wait to seed that area with Bermudagrass seed.
    Will using Tenacity to treat weeds in an unseeded area hurt/harm the Bermudagrass seed? Are is there a certian amount of time I need to wait to plant the Bermudagrass seed?
    A

    Tenacity Herbicide is only labeled to be applied to dormant bermudagrass, it could harm actively growing bermuda or inhibit seeds from growing.  You need to wait at least 18 months to seed the area after an application 

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    8 of 9 people found this answer helpful.
  • Asked by Mario from Winnetka
    09/03/2019
    Q
    Can I use Tenacity Herbicide on Marathon grass?
    A

    Yes.  Marathon grass products are Tall Fescue grass species and Tenacity Herbicide can safely be applied to Tall Fescue. 

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    8 of 9 people found this answer helpful.
  • Asked by Ronnie from Charlotte
    12/15/2019
    Q
    Is Tenacity Herbicide supposed to be a white color like milk?
    I wonder if it is out of date. Is it supposed to be clear? Mine looks like milk, and I see no sign of it killing anything after one week.
    A

    According to the Safety Data Sheet, before Tenacity Herbicide is diluted, it should have a beige to tan liquid appearance. If the product has been tightly sealed and kept out of sunlight and extreme temperatures, the shelf life is 3-5 years. When using Tenacity, foliage of treated weeds cease growth after application, then turn white (loss of chlorophyll), and death may take up to three weeks. A repeat application is required after two to three weeks for improved postemergence weed control.  A non-ionic surfactant should be added in post-emergence applications. Please review the product label for more information about this product and applications.

     

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    8 of 11 people found this answer helpful.
  • Asked by Mike from Puyallup, Wa
    07/20/2019
    Q
    Do I water in Tenacity?
    A

    You do not need to water after a post emergent application of Tenacity.

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    7 of 11 people found this answer helpful.
  • Asked by Vito from Levittown
    08/28/2019
    Q
    Does Tenacity Herbicide kill wild violets?
    A

    Yes, Tenacity is labeled for post-emergent control of wild violets.

    Was this answer helpful to you?   Yes No
    7 of 8 people found this answer helpful.
  • Asked by Cj from Mi
    04/12/2021
    Q
    Can I apply Tenacity after using a Weed and Feed(Scotts turf builder halts)?
    A

    Yes, you could potentially apply Tenacity Herbicide after using a weed and feed product, but you should wait about 2 weeks between applications so that you do do not put too much stress on the grass at one time.

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    7 of 7 people found this answer helpful.
  • Asked by Claudia from Ness City, Kansas
    07/08/2014
    Q
    I bought Tenacity to kill some small spurge in Buffalograss. What strength should I use in a one gallon spray
    It doesn't seem to be killing it. Should I use it stronger or more often? At first I used it 1/2 tsp in 1 gallon with 1/2 tsp surfactant
    A
    Tenacity Herbicide does not list spurge as a weed that it controls on the product label so that would be why it is not working for this weed.  You would have better success using a product that specifically lists spurge on the label such as the Speedzone Southern.
    Was this answer helpful to you?   Yes No
    7 of 8 people found this answer helpful.
  • Asked by Donald
    04/14/2015
    Q
    Why doesn't Tenacity ship to CA?
    A
    There are EPA regulations in each state that state which products can be shipped to a particular state. Some products do not obtain registration in certain states. We apologize for any inconvenience this may cause.
    Was this answer helpful to you?   Yes No
    7 of 13 people found this answer helpful.
  • Asked by Gerald from Albany, Or
    04/22/2017
    Q
    I sprayed Tenacity Herbicide on a site that will be a future flower bed to kill the weeds in the dirt. How long before I can plant the flowers?
    A

    Per the product label for Tenacity Herbicide: Do not plant any crop other than turfgrass species for 18 months after the last application of Tenacity or injury may occur.

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    7 of 7 people found this answer helpful.
  • Asked by Jeff from Menomonie, Wi
    05/01/2017
    Q
    When is it too late to apply Tenacity as a pre-emergent for crabgrass control?
    A

    Tenacity Herbicide can be applied any time before the weeds start to germinate. Weeds absorb Tenacity as they emerge from the soil. For the best time to apply pre-emergents in your county we recommend contacting your local cooperative extension office here. Crabgrass seeds will start to germinate when soil temperature are around 55 degrees, so you need to apply it before you have those temperatures for best results.

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    7 of 10 people found this answer helpful.
  • Asked by Pete from Wexford, Pa
    08/28/2017
    Q
    Will Tenacity rid my lawn of bentgrass, or should I use Roundup QuikPro?
    I used tenacity last Fall, but the creeping bentgrass is still there. After the third application (each application put down 2 weeks apart) I raked the 'brownish' bentrgrass and re-seeded (seed: Penn State mix) the areas where I applied Tenacity; but it didn't work since the bentgrass is still there. Maybe I should have not raked and just scratched the soil with a garden weasel and re-seeded? Maybe the raking didn't allow the Tenacity to stay in the bentgrass' root system?
    A

    Tenacity Herbicide is our most popular product for eliminating bentgrass from other desirable turfgrasses, but it does typically require multiple applications. Late summer/Fall applications will be more effective than Spring applications. If you are able to spot treat with RoundUp QuikPro, that is another option. It would still be ideal to wait at least 10-14 days after applying the Roundup QuikPro before raking out the dead plants and re-seeding those areas.

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    7 of 10 people found this answer helpful.
Displaying 201 to 220 (of 679 questions)