Tenacity Herbicide - Questions & Answers

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  • Asked by Marcus from Mount Juliet
    04/02/2020
    Q
    Any experience mixing Tenacity with Triad Select?
    I'm wanting to do my general early spring herbidicde to kill chickweed and other winter break through weeds in my fescue lawn. Would also like to start my bermuda suppression as well.
    A

    Due to the strength of Tenacity, and the need to not over apply or overlap with it during application to avoid discoloring or excess stress to the desirable turf grass, we do not recommend mixing other post emergent herbicides in the same tank with it unless stated on the label. Tenacity should be applied with a Non Ionic Surfactant and a temporary marking dye like Turf Mark Blue to ensure no overlapping occurs to cause your turf to whiten. We would recommend applying the Triad Select in a separate application. Should you decide to try tank mix the two, we recommend doing a tank mix test first for compatibility, and test a small area to ensure safety to the lawn.  Though be aware Tenacity is not labeled to effect bermuda at all.

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    2 of 3 people found this answer helpful.
  • Asked by Kent from Lincoln, Nebraska
    05/02/2019
    Q
    Will Tenacity kill thin-bladed fescue?
    I’m starting a new lawn and that’s the type of grass I’m going to use. I don’t want to kill it before I get anything growing.
    A

    Tenacity Herbicide should not be used if the seed you are putting down is more than 20% fine fescue. If you have a fescue blend that is less than 20% fine fescue, then it should be safe to use Tenacity before or at the same time as seeding. Please refer to the product label for full application instructions.

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    2 of 2 people found this answer helpful.
  • Asked by Armen from Fairport, Ny
    03/31/2017
    Q
    Is there a specific sprayer recommended to apply Tenacity?
    Should you spray the entire lawn to take care of undetected areas of Bentgrass or spot spray those obvious areas only ??
    A

    Tenacity Herbicide can be used as both a spot treatment in your lawn or as a broadcast spray. It can be applied with any hand pump sprayer.  Many of our customers like the Chapin Premier 1-Gallon Sprayer

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    2 of 2 people found this answer helpful.
  • Asked by Todd from Providence, Ri
    05/25/2018
    Q
    How do I protect vegetables, flowers, creeping juniper when using Tenacity Herbicide?
    Is spray drift a problem? Do I need to cover plants? Does a little spray stress large trees?
    A

    You should cover plants that you do not wish drift of a Tenacity Herbicide application to contact. It should only be applied to established listed lawns as directed. You should avoid vegetables, flowers, groundcovers (junipers), trees etc. Apply on a non-windy day.

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  • Asked by Jw from Va
    07/07/2017
    Q
    Can you spray Tenacity and Gordon's Trimec at the same time?
    A

    It may be fine to mix both Tenacity and Gordon's Trimec together but has not been tested by the manufacturer. We recommend that you perform a jar test to an inconspicuous area first prior to a full application to confirm if you wish to use them both together.

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    2 of 5 people found this answer helpful.
  • Asked by Carol
    05/08/2018
    Q
    How long will it take to show signs of kill after spraying Tenacity Herbicide on Poa Annua?
    A

    Tenacity Herbicide is only labeled to suppress Poa Annua as pre-emergent. Tenacity Herbicide DOES NOT have any post emergent control when the poa is actively growing. 

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    2 of 3 people found this answer helpful.
  • Asked by Sue from Lakeway, Texas
    03/01/2018
    Q
    Can Tenacity be used on turf before being treated with beneficial nematodes?
    I have a buffalograss and blue grama mix of turf in central Texas and have grassy annual weeds. I am using Tenacity before and at seeding in areas destroyed by digging animals last year.
    A

    There are no restrictions on the label for Tenacity Herbicide regarding timing around application of beneficial nematodes. Unfortuunately, not too much is known about the possible effects of using herbicides when applying beneficial insects. We would not recommend mixing or applying Tenacity immediately after appying the nematodes. We recommend contacting the manufacturer of the nematodes you are using for their recommendation on how long to wait between these applications and which is best done first.

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    2 of 3 people found this answer helpful.
  • Asked by Dennis from Ma
    09/26/2018
    Q
    Is it safe to apply Tenacity within a week of slice seeding Kentucky blue grass and rye?
    My lawn was slice seeded with rye and KBG 2 days ago. Is it safe to apply within a week of seeding? I was not able to apply during the time of seeding
    A

    You should wait until the newly germinated turf has been mowed two times, or four weeks after emergence (whichever is longer) before making a postemergence application with Tenacity if it was not applied at the time of seeding.

     

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  • Asked by Dan from Harleysville, Pa
    04/10/2021
    Q
    How long does Tenacity Herbicide remain in soil, and when is it safe to plant vegetables in a previously treated area?
    I do not currently have a garden in my yard but would like to start one in the future. In the meantime, I would like to use Tenacity to control several weeds that have invaded my entire lawn. I'm wondering how long I would need to wait after application of Tenacity, both as a pre- and post-emergent, before it is safe to start growing vegetables in an area that has been previously sprayed with Tenacity.
    A

    You will need to wait one year after Tenacity is used in a given area before you can plant edible vegetation in that area. 

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  • Asked by Tom from Potomac, Md
    05/03/2016
    Q
    Will Tenacity kill nimblewill?
    A

    Yes, you can use Tenacity to kill nimblewill. 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.

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  • Asked by Mike from Harleysville, Pa
    05/07/2017
    Q
    How many ounces of Tenacity Herbicide should I put in a 26 gallon boom sprayer?
    How many ounces of tenacity and surfactant are needed in a 26 gallon boom sprayer for general lawn/grass weed maintenance? Ive read for tenacity, 1 teaspoon per 2 gallons of water but also 4-8 oz per acre in at least 30 gallons of water. How much surfactant should be included?
    A

    When using Tenacity Herbicide, the amount of water is not what is important; the right amount of product is. The rate for 1000 square feet is 1 teaspoon. The will mix in 1-2 gallons of water. Please let me know how much area you are treating to give you the best rate.

    The rate of the surfactant is 1-2 teaspoons per gallon of water. For 26 gallons of water, the rate of surfactant is 26-52 fl oz.

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    2 of 8 people found this answer helpful.
  • Asked by Ted from Ks
    05/26/2018
    Q
    Will a surfactant limit the pre-emergent effect of Tenacity?
    I have newly seeded buffalograss that has not yet emerged. Many weeds have emerged first. I put Tenacity down at 5 oz./acre with surfactant. Will I still get preemergent control?
    A

    Tenacity Herbicide would only need a surfactant when using as a post emergent.  For pre-emergence control you need to water the product in and apply before the weeds have germinated/emerged so it appears to be too late to benefit from that.

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  • Asked by Jj from Myrtle Beach
    10/23/2019
    Q
    Can Tenacity be used on dichondra lawns? Will it kill spurge?
    A

    Tenacity Herbicide is not labeled for use on a dichondra lawn, and it is not labeled for spurge. Dichondra lawns are considered a type of ground cover, and many herbicides may prevent this type of lawn from growing. Please contact your local cooperative extension office Master Gardener for assistance on products that will take care of the weeds in your lawn without causing harm. Please let us know if they suggest a product, and we will certainly make an effort to locate it for you.

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  • Asked by John from Youngstown, Oh
    07/20/2019
    Q
    If I keep applying Tenacity 2 times a year, one in early spring and in fall, will it keep bent grass out of my yard?
    A

    The product label states that Tenacity acts as a pre and post emergent on bentgrass so it should help prevent it for at least a few months if applied at the right time.  As a post emergent, you would apply it as you start to see new signs of bentgrass growth at two to three week intervals for up to three applications.  Twice a year would not be enough for a post emergent control but can help to prevent it.  Bentgrass control may be more effective in the late summer/early fall just prior to onset of renewed bentgrass growth, rather than spring/early summer applications.

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  • Asked by Gary from Garden City
    07/01/2019
    Q
    I have some Bermuda grass in a section of my lawn. Will Tenacity kill the bermuda? I'd like to keep it.
    A

    Tenacity Herbicide is only labeled to be used on bermuda when it is dormant, otherwise it can be sensitive to applications and could harm it.

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  • Asked by Star from Cary, Nc
    08/27/2019
    Q
    Should I apply Tenacity before fall feed or after fall feed to the lawn?
    My lawn does not look healthy, so I decided to apply fall feed as it is almost September. It has lot of weeds like crabgrass, clover, etc. So when is the best time to apply Tenacity?
    A

    If you are applying Tenacity Herbicide as a post-emergent, then you would apply when the target weeds are actively growing. Keep in mind that Tenacity is most effective in young crabgrass, so it may require more than one application to control mature crabgrass. If applying as a pre-emergent, then you usually apply just before fall overseeding and before soil temperatures drop below 70 degrees.

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  • Asked by Steven
    10/03/2014
    Q
    Will Tenacity work on Nutsedge growing in my Oporum ground cover?
    A
    Tenacity is a systemic preemergent labeled to treat for Yellow Nutsedge only, but not does list other types of nutsedge. We do carry Sedgehammer, a post emergent which is labeled for Purple and Yellow Nutsedge control. We recommend contacting your local Master Gardner for clarification on the effects of either of the products on you oporum ground cover.
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  • 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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  • Asked by Noah from Cincinnati, Oh
    07/11/2019
    Q
    Is Tenacity effective on nutsedge?
    A

    Tenacity is labeled for control of yellow nutsedge only. Tenacity does not cover other species of nutsedge. We do carry Sedgehammer which is labeled for all species of nutsedge.

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  • Asked by Judith
    04/23/2021
    Q
    My grass turned white after applying Tenacity Herbicide to the weeds. Will my grass recover?
    A

    Yes, the whitening of the target weeds and sometimes the turfgrass is normal per the manufacturer. Tenacity Herbicide is labeled to be used on Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue, Perennial Ryegrass, & Fine Fescue. It is not labeled for Bermudagrass or Centipede lawns and can cause turf injury. The whitening you see is the active ingredient working its way into the weeds/grass which causes the loss of chlorophyll followed by the weeds dying off within 1-3 weeks..If using on cool season turf, you can reseed those damaged areas if needed.  

    Tenacity Herbicide is applied at 5oz to 8oz per acre (depending on the turf type) or for spot treatments, 2 tsp + 3 tsp Non Ionic Surfactant per gallon of water per 1,000 sq ft. Please refer to the product label for the mix rate and turf type you have. 

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Displaying 381 to 400 (of 590 questions)