Tenacity Herbicide - Questions & Answers

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  • Asked by Brenda from Geneseo, Kansas
    06/05/2013
    Q
    When should I apply Tenacity to newly planted Buffalograss?
    We planted Buffalograss 10 days ago and it is starting to sprout, along with some pesky weeds. Is it safe to apply Tenacity now, or should we give the Buffalograss more time to mature? If so, how much longer?
    A
    According to the Tenacity product label for New Lawn Establishment: Wait until the newly germinated turf has been mowed two times or four weeks after emergence(whichever is longer) before making a postemergence application.
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    4 of 5 people found this answer helpful.
  • 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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    4 of 5 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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    4 of 4 people found this answer helpful.
  • Asked by Nike from Michigan
    08/06/2018
    Q
    Will Tenacity Herbicide affect any other cool season grasses?
    I sprayed to kill bentgrass and it has worked but I believe it turned some of my other grass, like fescue white as well.
    A

    Tenacity Herbicide may cause temporary whitening of turfgrass foliage. In general, symptoms appear five to seven days after application and last for several weeks. A repeat application to the same site causes less whitening of the plant tissue.

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    4 of 4 people found this answer helpful.
  • Asked by Nike from Michigan
    09/05/2018
    Q
    Can Tenacity Herbicide be used to treat bentgrass on new cool-season grasses I planted about 3 weeks ago?
    A

    You will want to 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 Herbicide to the new cool season turf. For the most effective Bentgrass control, you will need to reapply Tenacity Herbicide at two to three-week intervals for up to three applications. Be sure to apply with a NIS surfactant. Making applications in late summer/early fall just before new growth is very effective in controlling bentgrass. 

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    4 of 4 people found this answer helpful.
  • Asked by Henry from Schenectady, New York
    10/12/2018
    Q
    Can Tenacity Herbicide be applied with a hose-end sprayer?
    A

    It is not recommended to use a hose-end sprayer to treat your lawn with Tenacity Herbicide or any other herbicide. The problem with using hose-end sprayers is that they are not very accurate and you can wind up dispensing more or less product than recommended per area and that can lead to less than desirable results.

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    4 of 4 people found this answer helpful.
  • Asked by Fred from Newport
    04/03/2019
    Q
    Can Tenacity be used for Nimblewill?
    A

    Tenacity Herbicide is labeled for application for post-emergent control of Nimbleweed to established cool season turf. Per the product label, you may need a second application after 2 to 3 weeks. Apply to young, actively growing weeds, and be sure to use a surfactant such as Southern Ag Non-Ionic surfactant for post-emergent applications.

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    4 of 4 people found this answer helpful.
  • Asked by Clancy from Pa
    08/25/2019
    Q
    Is it safe to graze horses after using Tenacity?
    A

    Tenacity is not labeled for use on pasture land. Pasture Pro Herbicide may be a better option.

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    4 of 9 people found this answer helpful.
  • Asked by Kevin from Sc
    07/15/2018
    Q
    Does Tenacity kill nimbleweed?
    A

    Tenacity Herbicide is labeled for post-emergent control of Nimbleweed to established cool season turf. Per the product label, you may need a second application after 2 to 3 weeks. Apply to young, actively growing weeds, and be sure to use a surfactant such as Southern Ag Non-Ionic surfactant for post-emergent applications.

     

     

     

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    4 of 4 people found this answer helpful.
  • Asked by Phyllis from Saint Joseph
    06/21/2019
    Q
    Can I use Tenacity in my flower garden?
    A

    No, Tenacity Herbicide should only be applied to the turf grasses listed on the product label.

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    4 of 4 people found this answer helpful.
  • Asked by Rivk from Augusta County, Va
    03/12/2019
    Q
    Can I use Tenacity as a preemergent on crabgrass and nimblewill?
    A

    Tenacity is labeled as a pre and post emergent for crabgrass but only as a post emergent for nimblewill. The most effective product to control nimblewill pre-emergently has been removed from the market (MSMA). We have had a lot of folks report that Dimension does a pretty good job pre-emergently but since the product is not technically labeled for nimblewill we cannot legally recommend it for this use. 

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    4 of 5 people found this answer helpful.
  • Asked by Gerald from Albany, Oregon
    05/03/2016
    Q
    How many times in a calendar year can I use Tenacity?
    A

    You would not apply Tenacity Herbicide at a rate of more than 16 oz per acre per year or per crop (equivalent to a maximum of 0.50 lb. of mesotrione per acre per year), whichever is shorter.

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    4 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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    4 of 5 people found this answer helpful.
  • Asked by Larry from Cowlesville, Ny
    08/09/2018
    Q
    For spot spraying crabgrass with Tenacity Herbicide, can a dye be used?
    A

     

    Tenacity Herbicide would be a great option for you to control crabgrass, and yes 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. 

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    4 of 5 people found this answer helpful.
  • Asked by Steven
    10/22/2014
    Q
    Will Tenacity Herbicide effect insects in the target area?
    A
    Tenacity Herbicide will not affect insects in the area that has been treated. It is a reduced risk herbicide. According to the manufacturer, Tenacity Herbicide should is not recommended to spray while bees are foraging.
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    4 of 9 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 Jacqueline from Garden City, Mi
    10/03/2019
    Q
    Do you recommend Tenacity for fall application to Michigan grass?
    My yard is being overtaken with Creeping Charlie and wild violets (along with numerous other weeds). Thought if I applied this now, in the spring I could re-seed
    A

    The best temperature range to apply most herbicides, including Tenacity, is between 65-85 degrees. For the best specific application times for your region, we recommend contacting your local extension office directly and speaking with the Master Gardener.

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    4 of 5 people found this answer helpful.
  • Asked by Rick from Fairlawn, Oh
    03/29/2019
    Q
    How early in the spring can you do an application of Tenacity?
    Is the first of April too early to apply Tenacity?
    A

    Tenacity Herbicide can be used when weeds are actively growing. It also can be applied when seeding with some grass types. You can check with your local cooperative extension office Master Gardener for specific timing in your area.

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    4 of 13 people found this answer helpful.
  • Asked by Tom from Michigan
    04/06/2019
    Q
    Does the soil have to be above a certain temperature to use Tenacity?
    A

    Tenacity Herbicide may be applied when soil temperatures are around 55 degrees or higher for post emergent control.  If you are using a pre-emergent you would need to apply before soil temps reach 55 degrees.

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    4 of 4 people found this answer helpful.
  • Asked by John from Farmington, Mi
    04/11/2019
    Q
    Looking to spray Tenacity for creeping Bentgrass, what is the best temperature to spray?
    it is spring here in MI - temperatures fluctuating between 50-60 degrees. Would it be okay to spray this product at these temps for creeping Bentgrass?
    A

    The best temperature range to apply most herbicides, including Tenacity, is between 65-85 degrees. 

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    4 of 5 people found this answer helpful.
Displaying 281 to 300 (of 581 questions)