Tenacity Herbicide - Questions & Answers

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  • Asked by Chau from Derry, Nh
    09/13/2016
    Q
    Should I use a surfactant when applying Tenacity Herbicide to a newly seeded lawn?
    Trying to restore my lawn and aerate/seed this past Saturday 9/3/2016. Waiting for my order of Tenacity and Surfactant to arrive sometimes this week. Should I use both products and apply to the new lawn even though it's a week after seeding? Also should I use surfactant with it for pre-emergence or is that only for post? Thanks in advance!
    A

    It is safe to apply Tenacity Herbicide at or near seeding for most types of turfgrass for pre-emergent control. You should avoid spraying Tenacity on newly germinated turfgrass plants. Please refer to the product label for complete application instructions. You would only need to use a surfactant when applying Tenacity for post-emergent weed control.

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    3 of 4 people found this answer helpful.
  • Asked by Rod from La Habra Ca
    10/30/2016
    Q
    If I only used 1 tsp of Tenacity Herbicide per gallon of water and not in 2 gallons of water, should I repeat application or go ahead and reseed the area?
    I purchased a bottle of tenacity from you a few months back. I recently treated areas of tall fescue that have turned ghost white (whitening was expected) a week + later I realized I messed up and mixed only 1 gallon per tsp/1000 sq feet + nis . The label calls for 2 gallons of water per tsp. Please let me know if you have any feedback of whether I should wait it out or prepare to reseed the affected areas? Thanks
    A

    Since Tenacity is an effective herbicide for weed control prior to or during seeding of certain turfgrasses during turf renovation and the water is only acting as the carrier for the solution to get into the weeds, you should be ok to reseed if you are happy with the results. For post emergent applications, you will need to wait for the turf to be established after 2 mowings to reapply.  

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    3 of 5 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 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 David from Kalamazoo
    07/14/2018
    Q
    Due to excess heat and draught my bent grass is dormant (brown). Can I use Tenacity now or should I wait.
    A

    Tenacity Herbicide is labeled to control bentgrass but it does need to be applied when it is actively growing and healthy.  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

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    3 of 3 people found this answer helpful.
  • Asked by Jason from Statesville, Nc
    10/03/2018
    Q
    Is Tenacity available in a granular form?
    A

    Tenacity Herbicide is only available in a liquid version.  

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    3 of 4 people found this answer helpful.
  • Asked by Chris from Connersville, Indiana
    03/12/2017
    Q
    What will kill nimbleweed in my bluegrass/fescue lawn?
    A

    Tenacity Herbicide would be a great product to use to treat for nimbleweed and can safely be used in fescue and other cool season grasses.

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    3 of 4 people found this answer helpful.
  • Asked by Mina from Baytown, Tx
    08/31/2018
    Q
    The Tenacity label says that it can be used for St. Augustine grass "grown for sod only." What does this mean?
    A

    Tenacity Herbicide should only be used on St. Augustine grass that is grown on sod farms.  It cannot be used on St. Augustine in residential lawns. 

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    3 of 19 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 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 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 Tony from Indianapolis, In
    04/15/2016
    Q
    Will Tenacity Herbicide kill daffodils?
    A

    It is possible that Tenacity Herbicide will harm daffodils if sprayed. Since flowers can be considered a broadleaf weed, this product can harm it. Tenacity Herbicide is only labeled for use on listed lawns. 

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    3 of 3 people found this answer helpful.
  • Asked by Jim from Cincinnati, Oh
    04/10/2017
    Q
    Will Tenacity kill bermuda grass?
    A

    The product label states that Bermuda grass is sensitive to Tenacity but it would not be recommended as a product specifically used to kill it. 

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    3 of 5 people found this answer helpful.
  • Asked by Joel from Ri
    04/24/2017
    Q
    Can I kill rye grass with Tenacity Herbicide? I live in the Northeast.
    A

    No, Tenacity Herbicide will not eliminate ryegrass.  If you want to eliminate ryegrass in cool season turf, we would recommend using Turflon Ester Ultra. The mixing rate is 3/8 - 3/4 oz. per 1,000 sq. ft.

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    3 of 4 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 Rexlo from Hackensack, Nj
    08/09/2018
    Q
    Can I mix the Tenacity Herbiicide with Eagle 20EW Specialty Fungicide, Dismiss Turf Herbicide & Talstar P (Talstar One) for turf?
    A

    It is not recommended to mix certain insecticides, herbicides, or fungicides with Tenacity Herbicide.  You should wait to apply insecticides 7 days after treating with Tenacity Herbicide to avoid potential turf injury. Other ingredients in the fungicides or herbicides would be fine to use at the same time if there are no resttrictions on the product label. 

     

     

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    3 of 3 people found this answer helpful.
  • Asked by Ken from Bbainbridge, Pa
    06/12/2019
    Q
    What type of grass can Tenacity Herbicide be used on?
    A

    Tenacity Herbicide can be safely applied to Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass (grown for sod only).

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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 Charles from Metropolis, Il
    08/26/2017
    Q
    What do you mean "after a post emergent application" when referring to watering after using Tenacity Herbicide?
    A

    Tenacity Herbicide can be used as a pre-emergent or a post-emergent. A post-emergent application on Tenacity Herbicide would be to kill weeds that are already there. The product does not need to be watered in after application. For a pre-emergent application, the product is used to prevent weeds from coming up. It is recommended that you water the product in 1/2 inch after application to get the product into the soil. 

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    3 of 3 people found this answer helpful.
  • Asked by Scot from Harrisburg, Pa
    06/13/2018
    Q
    Did I just kill my garden plants by spraying them with Tenacity Herbicide?
    I have a lot of ornamental (sea) grasses, and just sprayed Tenacity over all my beds, in an effort to suppress an overgrowth of weeds. I also have seedling Crepe Myrtle bushes. Should I be worried, and is there anything that will counter-act Tenacity on a mis-sprayed plant?
    A

    Tenacity Herbicide should not be used around or on desirable ornamentals and/or trees or used within 3 feet of trees or ornamentals.  Unfortunately, there is not a product that can be used to reverse the effects of the Tenacity sprayed on intolerant plants. 

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    3 of 4 people found this answer helpful.
Displaying 321 to 340 (of 558 questions)