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Tenacity Herbicide - Questions & Answers

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Displaying 1 to 20 (of 611 questions)
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  • Asked by R.bevans from Lasalle, Colorado
    08/18/2011
    Q
    What is the chemical Tenacity?
    A
    Tenacity is a systemic preemergence and postemergence herbicide for the selective contact and residual control of weeds in turfgrasses. Tenacity contains the active ingredient Mesotrione.
    Was this answer helpful to you?   Yes No
    41 of 45 people found this answer helpful.
  • Asked by Mary from Marshfield, Wi
    10/11/2011
    Q
    Do I need to keep the dogs away from the area where I have applied Tenacity?
    A
    You should keep the dogs off of the area while you are applying Tenacity and until the area has had a chance to dry, about 2-4 hours.
    Was this answer helpful to you?   Yes No
    764 of 784 people found this answer helpful.
  • Asked by Lea from Melbourne, Victoria, Australia
    01/15/2012
    Q
    Could you please confirm that Tenacity will not kill of Tall Fescue or any other grasses?
    Is Tenacity available in Australia, Melbourne
    A

    Tenacity Herbicide is labeled for use on Tall Fescue, Kentucky Bluegrass, Centipedegrass, Buffalograss, Perennial Ryegrass, Fine Fescue, St. Augustine Grass. Other species of grass such as Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum and bermudagrass are sensitive to Tenacity applications and damage may occur. According to the product label - Residential Lawn Applications: Unless renovating and/or re-seeding the home lawn, avoid broadcast applications of Tenacity for pre and post-emergence weed control because undesirable whitening of some turfgrasses may occur.

    We do not ship to Australia and we are not sure if the manufacturer offers Tenacity in Australia. You can contact the manufacturer, Syngenta, to inquire about availability 866-796-4368.

    Was this answer helpful to you?   Yes No
    100 of 111 people found this answer helpful.
  • Asked by Alphonse from Austin, Texas
    02/28/2012
    Q
    Can I use Tenacity on Buffalo and St. Augustine grass?
    A
    Tenacity is labeled for use in both St. Augustine grass and Buffalo grass. Be sure to read and follow the Tenacity product label for best results.
    Was this answer helpful to you?   Yes No
    24 of 30 people found this answer helpful.
  • Asked by Scott from Grosse Ile Michigan
    03/08/2012
    Q
    After applying Tenacity and surfactant how long do you have to wait to seed or sod?
    A
    According to the Tenacity product label "Apply Tenacity at 5-8 fl. oz. per acre in at least 30 gallons of water per acre prior to seeding or post seeding of tolerant turfgrass species listed on this label, except fine fescue. Tenacity may reduce density of fine fescue seedings. Tenacity can be used on grass seed blends that contain less than 20% by weight of hard or fine fescue. Tenacity will control many monocot and dicot weeds that compete with and slow the establishment of the turfgrass stands. Apply at grass seeding or close to seeding for best performance. Avoid spraying on newly germinated turfgrass plants. Wait until the newly germinated turf has been mowed two times or four weeks after emergence (whichever is longer) before making a postemergence application." If you need more specific information on a turfgrass not mentioned on the product label you can reach the manufacturer at 866-796-4368.
    Was this answer helpful to you?   Yes No
    221 of 306 people found this answer helpful.
  • Asked by Janet from Weston Ct
    04/13/2012
    Q
    How much concentrated Tenacity do I need to cover one acre?
    A
    The instruction label for Tenacity calls for 5 to 8 ounces of Tenacity per Acre.  Please see page 8 of the product label for the amount per acre depending on the type of grass that you have.
    Was this answer helpful to you?   Yes No
    10 of 10 people found this answer helpful.
  • Asked by Kyle
    04/25/2012
    Q
    If Tenacity is applied to a pasture how long do you need to wait before allowing grazing?
    A
    We contacted the manufacturer Syngenta since Tenacity is not labeled for use on pasture land and they told us that you would need to wait 90 days before turning animals out to graze in treated pastures.
    Was this answer helpful to you?   Yes No
    39 of 42 people found this answer helpful.
  • Asked by Roland from York, Pa
    07/23/2012
    Q
    Will Tenacity control Nutsedge grasses?
    A
    Tenacity is labeled for control of Yellow Nutsedge grass only. Tenacity does not cover other species of nutsedge. We do carry Sedgehammer which was specifically formulated for nutsedge control.
    Was this answer helpful to you?   Yes No
    56 of 58 people found this answer helpful.
  • Asked by Chuck from Dekalb, Ill
    08/24/2012
    Q
    How long should you wait before retreating your grass? It has been 2 weeks since I first applied. I can see
    the sprayed areas are turning white. Should I do another application at this time. The "bad" weed is hanging in there and I want to totally get rid of it befor winter. Thanks
    A
    According to the Tenacity product label you can reapply the product after 2-3 weeks for post emergence control of actively growing weeds for best results.
    Was this answer helpful to you?   Yes No
    23 of 27 people found this answer helpful.
  • Asked by Jim from Keizer,oregon
    12/29/2012
    Q
    I am in Oregon with Green Perennial ryegrass. At what time of year do I start with my first application.
    My personal lawn. Was hydroseeded and slowly has been invaded with crabgrass and other grassy weeds.
    A
    Timing will vary greatly from region to region. We recommend contacting your local cooperative extension office and speaking to the master gardener on staff as he/she will have the most accurate timing information available for your region.
    Was this answer helpful to you?   Yes No
    0 of 3 people found this answer helpful.
  • Asked by Laurie from Southold, Ny
    04/19/2013
    Q
    Does Tenacity kill Zoysia grass?
    I'm looking for a product that will kill Zoysia grass.
    A
    According to the product label: Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum and bermudagrass are sensitive to Tenacity applications. Avoid spraying these turf types unless control and/or injury can be tolerated. Maintain a five foot buffer between treated areas and bentgrass or Poa annua greens. While Tenacity is not labeled to kill zoysia it will most likely do so.
    Was this answer helpful to you?   Yes No
    107 of 119 people found this answer helpful.
  • Asked by Erik from Waukesha, Wi
    05/09/2013
    Q
    Does Tenacity control Quackgrass?
    I know quackgrass is not specifically mentioned on the product label, but I have read some unscientific research saying it does control and eliminate quackgrass with repeated applications.
    A
    Just as you stated Quackgrass is not on the label to be controlled by the Tenacity, and we cannot recommend you use it for your needs with it not being listed. We do however carry Certainty, which is a selective post emergent herbicide like Tenacity, and does have Quackgrass listed on the label for weeds controlled. You can see the dilutions and what grasses Certainty is safe to be used on, on the product label.
    Was this answer helpful to you?   Yes No
    9 of 13 people found this answer helpful.
  • Asked by Bob from Apple Valley, Mn
    05/14/2013
    Q
    I have crab and quack grass among perennial plants such as day lilies, will Tenacity work?
    A
    Tenacity is not labeled to kill Quackgrass. We recommend using a glyphosate product like Glyphosel Pro and spot treating. You can also use a product a selective herbicide like Certainty if you have warm season grass. Please make sure to always review the product label to make sure you are using the right product and mixing ratio for your needs.
    Was this answer helpful to you?   Yes No
    6 of 7 people found this answer helpful.
  • Asked by Peter from Oklahoma City, Oklahoma
    05/24/2013
    Q
    Which pre- emergent is best for control of nutsedge
    Every year i have problem with nutsedge weed. Can you suggest which pre- emergent is best to use.
    A
    Nut sedge is a summer weed that is hard to control using a pre emergent. A great post emergent to ponder over is called Sedgehammer. SedgeHammer herbicide kills nutsedge without injury to turfgrass, established ornamentals, shrubs, and/or trees. SedgeHammer provides post-emergence control of both purple nutsedge and yellow nutsedge. SedgeHammer also controls many broadleaf weeds and suppresses kyllinga. Nutsedge is controlled after emergence in cool and warm season turf grasses such as St. Augustinegrass, Bermudagrass, Kentucky Bluegrass, tall and fine fescue, and perennial ryegrass. Sedgehammer is considered one of the more "gentle to turfgrass" products and pets and people can return to the treated area once the spray dries.
    Was this answer helpful to you?   Yes No
    48 of 53 people found this answer helpful.
  • Asked by John from Ames, Ia
    06/02/2013
    Q
    How long do I need to wait to start bagging my lawn for composting the clippings.
    I heard the product stays active even after composting and may harm my garden plants.
    A
    We contacted Syngenta which is the manufacturer of the product. According to Syngenta, once you have cut your grass, you would need to put the clipping in the compost pile and let it sit for at least 30 days. After 30 days the chemical has broken down in the clippings and can be used in other areas of the yard where you are growing garden plants.
    Was this answer helpful to you?   Yes No
    185 of 199 people found this answer helpful.
  • 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.
    Was this answer helpful to you?   Yes No
    4 of 5 people found this answer helpful.
  • Asked by Ron from Brookeville, Maryland
    06/11/2013
    Q
    Will Tenacity kill Annual Jewgrass?
    A
    Tenacity Herbicide is not specificaly labeled for jewgrass. Some say that Sethoxydim active ingredient will treat jewgrass. Please contact your local cooperative extension office and speak with the Master Gardener for advice on what is working in your area.
    Was this answer helpful to you?   Yes No
    1 of 5 people found this answer helpful.
  • Asked by Jeff from Cincinnati, Ohio
    06/23/2013
    Q
    Does Tenacity effect both post and pre-emergent POA/Annual Bluegrass?
    I reseeded my lawn and have some POA in spots and I don't want to keep killing and reseeding. I would like to apply a pre-emergent that will break the seed drop germination cycle.
    A
    Tenacity is not labeled to control Poa Annua/Annual Bluegrass, it only states that it could cause injury to it if sprayed with tenacity. Since it is not specifically designed to control Poa Annua, a better product choice would be Echelon 4SC. Echelon 4SC is labeled for pre-emergent control of poa annua only. According to the product label Poa annua is a winter annual. Applications of Echelon 4SC Herbicide should be made in August or September to established, non overseeded turf before Poa Annua germinates. Consult your local Cooperative Extension Service for more specific applications timings for your local area since August and September are approximate timings.
    Was this answer helpful to you?   Yes No
    13 of 15 people found this answer helpful.
  • Asked by Gregg from Hastings Ne
    07/08/2013
    Q
    What is the application frequency for Tenacity?
    How often should Tenacity be applied? I have made one application and am seeing some results after 5 days. Do I need to reapply and if so, how soon?
    A
    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. Please let us know if you have any other questions.
    Was this answer helpful to you?   Yes No
    76 of 82 people found this answer helpful.
  • Asked by Dale from Leesburg,va
    08/05/2013
    Q
    Is Tenacity Herbicide bad for pets?
    A
    Tenacity herbicide is safe to use in a yard will pets will frequent as long as they are out of the area during the application. They can safely return after the area has dried.
    Was this answer helpful to you?   Yes No
    433 of 468 people found this answer helpful.
Displaying 1 to 20 (of 611 questions)