Tenacity Herbicide - Questions & Answers

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  • Asked by Robert from Orlando, Fl
    05/14/2018
    Q
    Is Tenacity Herbicide a good choice crab grass control in Centipede grass?
    I live near Orlando, FL and have centipede grass. What is a good product that I can use for general weed control? I have several areas with weeds, but not all over the entire yard. I'd like something I can put in a pump sprayer. I know one of the weeds I have is crabgrass, but not sure what the other ones are.
    A

     

    Tenacity Herbicide? would be a great option for you to control crabgrass, along with many other common weeds, without harming your Centipede lawn.  Tenacity needs to be tank mixed with a non ionic surfactant? or the best results and stick to the leaf surface of the weeds, and its advised to use a dye like Turf Mark Blue? with it so you can make sure to not overlap if you plan to do a broadcast application on the property. According to the Tenacity product label you will need to mix 1/2 tsp of product + 1 1/2 tsp surfactant with 1 gallon of water for spot treatments. After spraying with Tenacity Herbicide, the 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. 

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    Tenacity Herbicide? would be a great option for you to control crabgrass without harming your Centipede lawn.  Tenacity needs to be tank mixed with a non ionic surfactant? or the best results and stick to the leaf surface of the weeds, and its advised to use a dye like Turf Mark Blue? with it so you can make sure to not overlap if you plan to do a broadcast application on the property. According to the Tenacity product label you will need to mix 1/2 tsp of product + 1 1/2 tsp surfactant with 1 gallon of water for spot treatments. After spraying with Tenacity Herbicide, the 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. 

     

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    16 of 17 people found this answer helpful.
  • Asked by Paula from Massachusetts
    05/15/2018
    Q
    Does Tenacity control/kill poa trivialis?
    A

    Tenacity Herbicide is not labeled to treat poa trivialis. Please provide your desired turfgrass for an alternate recommendation. Thank you!

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  • Asked by John from Pulaski
    05/22/2018
    Q
    Can you mix insecticide with Tenacity?
    A

    It is not recommended to mix certain insecticides with Tenacity Herbicide.  You should wait to apply organophosphate or carbamate insecticides 7 days after treating with Tenacity Herbicide to avoid potential turf injury. Other active ingredients would be fine to use at the same time.

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    3 of 3 people found this answer helpful.
  • Asked by Trey from Shelley, Id
    05/23/2018
    Q
    Will Tenacity prevent Kentucky Bluegrass from filling in?
    I would like to control broadleaf and other grassy weeds in my Kentucky Bluegrass lawn. But I do have some thin or bare spots in the lawn that I'm hoping the Kentucky Bluegrass will take over and fill in. Because of the pre-emergent, will Tenacity also prevent the Kentucky Bluegrass from filling in?
    A

    Tenacity will help control annual bluegrass (poa annua) from germinating in the Fall, but it will not interfere with new plantings of Kentucky Bluegrass. If you are putting down any new seed, apply Tenacity as close to seeding as possible. If you have new KBG seedlings coming up already, then wait to apply Tenacity until after the new grass is established (2 mowings or four weeks, whichever is longer).

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    12 of 14 people found this answer helpful.
  • Asked by Darl
    05/23/2018
    Q
    Will Tenacity Herbicide kill wild violets?
    A

    Yes, Tenacity Herbicide is labeled for wild violets. The rate for 1000 square feet is 1 teaspoon.

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    61 of 66 people found this answer helpful.
  • Asked by Matt from Greenville, Nc
    05/24/2018
    Q
    How can I kill crabgrass in Centipedegrass?
    I have centipede grass in Eastern NC and a real problem with crabgrass. I've tried atrazine but have had no luck. Trying to stay away from quinclorac as everything I read says not to use in centipede lawns. Is there anything I cant get that will kill it- post emergent. Once we get to dormancy this winter (January) I plan on putting down prodiamine to hopefully combat it from a pre emergent stance.
    A

    As you probably know, Centipedegrass is a very sensitive species of turf so many products that eliminate the crabgrass and other weeds can also cause damage to your lawn. Tenacity is a great pre- and post-emergent herbicide that will control crabgrass along with many other types of weeds without harming your centipede lawn. Make sure to read the Tenacity label very carefully and mix exactly what is recommended as this is a strong product and mis-using it can cause temporary turf injury. When applying Tenacity it is highly recommended to use a temporary turf colorant like Turf Mark Blue to allow you to see where you are spraying. Overlapping your application of Tenacity can cause temporary whitening of the lawn as well, but the color will return in 3-4 weeks at most. Please let us know if you have any other questions.

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    5 of 5 people found this answer helpful.
  • Asked by Jon from Miller Place
    05/24/2018
    Q
    How long after using Tenacity Herbicide will I see results?
    A

    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. 

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    89 of 98 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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    2 of 2 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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    3 of 6 people found this answer helpful.
  • Asked by Chris from Red Hook, Ny
    05/31/2018
    Q
    I recently applied Grubex and fertilizer. How long do I need to wait before I can apply Tenacity?
    How long do I need to wait to apply the Tenacity? Also, would you recommend a spot treatment of Tenacity or can I do the whole lawn. any particular oz/acre recommended? I over-seeded/repaired some lawn about 4 weeks ago. Thank you!
    A

    There are no time restrictions when applying Tenacity Herbicide along with insecticides or fertilizers.  You can either spot treat or broadcast depending on how much of the target weed you are dealing with.

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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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    4 of 5 people found this answer helpful.
  • Asked by Roger from Converse, In
    06/19/2018
    Q
    Is there a shelf life for Tenacity Herbicide after mixed with water?
    A

    Tenacity Herbicide should be used within 24 hours of mixing with water.

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    17 of 18 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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    7 of 65 people found this answer helpful.
  • Asked by John from Jeffersonville, Indiana
    06/28/2018
    Q
    Can I use Tenacity to kill nimblewill before fall seeding?
    I would like to use Tenacity to kill out some nimblewill and other weeds before I seed with a tall fescue blend of grass seed in the fall, around September 1st. If it may take two applications of Tenacity, when should I use my two applications for best results? IE. first application of Tenacity on July 15 and second application of Tenacity on August 15 then seed my tall fescue blend on September 1st ? Also, for a 10,000 sq. ft yard, how much would I need for two applications?
    A

    To control nimblewill, you should start applying Tenacity Herbicide in the spring (late-April). You will need to make two or three applications to get complete control.  You can also apply Tenacity in late summer and fall, but you should initiate treatments by August for best results. 

    If you are spot treating, you will need to use 1 tsp. of Tenacity along with 3 tsp. Non Ionic Surfactant in 2 gallons of water per 1,000 sq. ft.  Otherwise apply Tenacity at 5 fl. oz. per acre in at least 30 gallons of water per acre.

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    10 of 11 people found this answer helpful.
  • Asked by Pc from Mclean, Va
    06/30/2018
    Q
    Can I use dithiopyr granules with Tenacity after seeding? How long after seed before applying?
    A

    New sod/seed should not be applied for at least 3 months after using any product containing dithiopyr. Once the sod/seed has been put down, it needs to be established for at least 6 months before applying.

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    1 of 2 people found this answer helpful.
  • Asked by John from Cordele, Ga
    07/08/2018
    Q
    Will Tenacity Herbicide kill sandspurs?
    A

    Tenacity Herbicide is not labeled for sandspur. We suggest Pastora Herbicide instead. It is labeled to control sandbur aka sandspur when used as directed on the product label for post or pre emergent control

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    7 of 8 people found this answer helpful.
  • Asked by Mike from Kathleen, Ga
    07/08/2018
    Q
    What herbicide can be used to kill crabgrass in centipede?
    A

    As you probably know, Centipedegrass is a very sensitive species of turf so many products that eliminate the crabgrass and other weeds can also cause damage to your lawn. Tenacity is a great pre- and post-emergent herbicide that will control crabgrass along with many other types of weeds without harming your centipede lawn. Make sure to read the Tenacity label very carefully and mix exactly what is recommended as this is a strong product and mis-using it can cause temporary turf injury. When applying Tenacity it is highly recommended to use a temporary turf colorant like Turf Mark Blue to allow you to see where you are spraying. Overlapping your application of Tenacity can cause temporary whitening of the lawn as well, but the color will return in 3-4 weeks at most. Please let us know if you have any other questions.

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    11 of 11 people found this answer helpful.
  • Asked by Joe from Traverse City, Mi
    07/11/2018
    Q
    Can Tenacity be added to a hydroseeding tank when installing a new lawn?
    I have a 1000 gallon easy lawn machine which does approx 13-14,000 sq ft for a full load. Usually paper mulch with tack. How much would I need per batch. With the heat in Michigan this summer some of my lawns have been growing as much crab grass as grass. Even after proper soil treatments before application.
    A

    Per the manufacturer, Tenacity Herbicide can be used in a hydroseeding tank as long as you're able to apply at a rate of 5 oz per Acre.Water is just the carrier but you need to make sure you irrigate the herbicide well. If this isn't a possibility then we would recommend making separate applications, hydroseeding first and then applying Tenacity.

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    0 of 1 people found this answer helpful.
  • Asked by Nike from Michigan
    07/11/2018
    Q
    Will Tenacity Herbicide kill Bermuda grass in a cool season lawn? I have bent grass and Bermuda that I need to remove.
    A

    Tenacity Herbicide will suppress Bentgrass after a few applications but is not labeled to suppress bermuda. Please follow the product label for application. Be sure to apply during cooler times of the day to avoid harming your desired turf grass. 

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    1 of 1 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.
Displaying 241 to 260 (of 611 questions)