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Tenacity Herbicide - Questions & Answers

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Displaying 141 to 160 (of 679 questions)
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  • Asked by Mary from Ocean View, Delaware
    08/23/2018
    Q
    Will Tenacity Herbicide kill wire grass in our tall fescue?
    A

    Wiregrass is a form of bermudagrass.  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.  Fusilade II can be used to get rid of bermuda grass in tall fescue.  Please be advised that bermuda grass is extremely difficult to control and you will likely need to make several applications. 

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    14 of 15 people found this answer helpful.
  • Asked by Maria from Portland, Oregon
    10/12/2014
    Q
    How often do I apply Tenacity to healthy lawn to keep the bentgrass out?
    I have killed the Bentgrass with Tenacity and reseeded. New grass is now growing in those areas. It is mid-October in NW Oregon. How often should I apply Tenacity to prevent the Bentgrass from coming back?
    A
    You can reapply Tenacity Herbicide when the newly germinated turf has been mowed two to three times or four weeks after emergence, which is longer. Repeat applications can be done after two to three weeks for continued post emergent weed control.
    Was this answer helpful to you?   Yes No
    14 of 16 people found this answer helpful.
  • Asked by Mike from Manchester, Pa
    07/15/2015
    Q
    Is Tenacity Herbicide Safe on Spruce Trees?
    Can I spray this product as both an herbicide and pre emergent in and around blue spruce ornamental trees (weeds emerging through bottom branches)? If yes, what is a safe application rate?
    A

    Tenacity Herbicide  could pose a discoloration if it gets on the bark. You want to try and make the application on a day that is not very windy. 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. Tenacity will also act as a pre emergent for listed weeds.

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    14 of 17 people found this answer helpful.
  • Asked by Oren from Wausau, Wi
    09/10/2016
    Q
    Does the surfactant get mixed with the Tenacity & water?
    A

    Yes, when using Tenacity Herbicide as a post-emergent herbicide you would add a non-ionic surfactant to the water mix.

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    14 of 16 people found this answer helpful.
  • Asked by Don from St. Louis, Mo
    01/25/2020
    Q
    What is the mix rate for Tenacity? Also, does it require a surfactant?
    How often can it be applied?
    A

    According to the Tenacity product label, you will need to mix 1 tsp of product + 3 tsp surfactant with 2 gallons of water for spot treatments applied at a rate of 1 gallon per 1,000 sq ft. It is 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. Repeat applications can be done after two to three weeks for continued post emergent weed control.

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    14 of 15 people found this answer helpful.
  • Asked by Regis from Greensburg
    09/23/2019
    Q
    Will Tenacity get rid of bentgrass?
    Is it too late to start applying Tenacity on October 1? Would it be better to wait until spring?
    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.

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    13 of 18 people found this answer helpful.
  • Asked by Eileen from Sugarloaf
    10/09/2019
    Q
    How long between sprayings of Tenacity Herbicide for bentgrass?
    A

    For bentgrass control, Tenacity Herbicide should be applied at 2-3 week intervals for up to 3 applications.  

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    13 of 13 people found this answer helpful.
  • Asked by Kenn from Pueblo, Colorado
    04/05/2016
    Q
    Do you need to water Tenacity Herbicide in?
    This is my second application and it has killed some but not all. I keep hearing did it turn the ground white . The answer is no? I put in on as suggested 3 to 1 I did the second app two days ago when will I notice the outcome from the second. coat.
    A

    Tenacity Herbicide can take multiple applications to be most effective.  It does not require irrigation after application for post-emergent weed control. Are you mixing a surfactant like Non Ionic Surfactant? This helps the product to stick and penetrate to the xylem of the plant best. Be sure the target weeds are listed on the Tenacity product label.

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    13 of 13 people found this answer helpful.
  • Asked by Joel from Martinsburg, Wv
    07/05/2017
    Q
    Can Tenacity Herbicide be mixed with products like Ortho Weed B Gon?
    A

    You could potentially mix Tenacity Herbicide with other products as long as you follow both product labels to be sure you are using the correct rates for the area you want to treat. We also recommend checking the labels first if you are planning on seeding or have recently done so. We also suggest a small jar test before mixing a large batch to check for compatability. 

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    13 of 15 people found this answer helpful.
  • Asked by Gabe from Clearwater, Fl
    08/30/2017
    Q
    Should I mow before I apply Tenacity?
    A

    For best results, it is recommended not to mow within 2 days before or after application of Tenacity Herbicide.

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    13 of 14 people found this answer helpful.
  • Asked by Al from Waterford, Michigan
    10/19/2016
    Q
    How soon can I reseed after applying Tenacity Herbicide to kill bentgrass?
    I applied 3 applications in two-week intervals. The lawn was 80% bentgrass. Is it getting too late in fall to seed?
    A

    Per the product label on Tenacity Herbicide, apply at grass seeding or close to seeding for best preformance. If you are not close, meaning within a week of application, then you would need to wait 6-8 weeks to re-seed, As for your questions is it too late ot re-seed, we recommend you contact a master gardener in your area or your Local Extention Office to get more information on that. 

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    13 of 26 people found this answer helpful.
  • Asked by Emilia from Ann Arbor, Michigan
    05/10/2014
    Q
    Can Tenacity Herbicide kill poison ivy/oak/sumac?
    A

    Tenacity Herbicide will not kill poison oak. Please see Bonide Poison Oak and Ivy Killer, which is designed just for poison oak and ivy.

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    13 of 26 people found this answer helpful.
  • Asked by Cc from Michigan
    05/07/2017
    Q
    Will Tenacity kill Orchard Grass, Quackgrass, and Tall Fescue?
    A

    No, Tenacity Herbicide will not kill or eliminate orchard grass, quackgrass or tall fescue.

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    12 of 16 people found this answer helpful.
  • Asked by Mark from San Jose, Ca
    08/03/2018
    Q
    Please clarify the mixing directions if one uses 2 gallons.
    You stated "... mix 0.5 tsp of Tenacity and 1.5 tsp of surfactant to one gallon of water covering 1,000 sq ft.", QUESTION: to be certain the 1,000 sq. ft. are covered, may one use two gallons of water and still mix in the 0.5 and 1.5 amounts? That is to say, what's important - - the concentration or the total mg. of Tenacity applied?
    A

    If it takes one gallon of water to cover 1,000 sq ft then use one gallon of water to the appropriate amount of products. If it takes 2 gallons of water, you will still use the same amount of Tenacity and surfactant. The water is the carrier so that amount of product is applied over the full 1,000 sq ft.

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    12 of 23 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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    12 of 13 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 Ernie from Broadwater, Ne
    11/26/2017
    Q
    Is Tenacity Herbicide bad for trees and shrubs?
    We have lots of trees and shrubs around and in our Buffalo grass lawn but also have lots of windmill grass that need to be wiped out Knowing that even a little air movement can drift the herbicide into unwanted areas such as my apple trees and shrubs around the patio
    A

    Tenacity Herbicide should not be used around or on desirable ornamentals and/or trees. This should not be used within 3 feet of the trees or ornamentals.

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    12 of 13 people found this answer helpful.
  • Asked by Frank from Ma
    08/01/2019
    Q
    Can you use chelated iron after applying Tenacity Herbicide?
    A

    Yes, chelated iron can be used after using Tenacity Herbicide 

    Was this answer helpful to you?   Yes No
    12 of 13 people found this answer helpful.
  • Asked by Ed from Trumbull, Ct
    06/15/2021
    Q
    Will my dog be harmed if she eats grass treated with Tenacity Herbicide ?
    A

    Once the application of Tenacity Herbicide has had time to dry it is safe for pets and children to reenter the treated area. Typically after 4-6 hours.  The small amount of active left is not enough to injure a dog that may eat the rass.

     

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    12 of 14 people found this answer helpful.
  • Asked by Derek from Upper Marlboro, Maryland
    09/18/2019
    Q
    After over seeding, when can I apply Tenacity?
    A

    Tenacity Herbicide is one of the few products that can be applied at seeding, prior to seeding, or just after seeding of new grasses to help prevent and control weeds at the same time. Be sure to check the label for any restrictions to certain turf types as Fine Fescue is more sensitive than other species when using Tenacity at seeding. Be sure to use a Non Ionic Surfactant with Tenacity when applying for best results. 

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    11 of 11 people found this answer helpful.
Displaying 141 to 160 (of 679 questions)