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Certainty Herbicide - 1.25 oz. - Questions & Answers

Learn more about Certainty Herbicide - 1.25 oz.

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Certainty Herbicide - 1.25 oz.
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Displaying 141 to 154 (of 154 questions)
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  • Asked by Bruce from Millstone Township
    04/06/2022
    Q
    Does Certainty Herbicide kill poa trivialis in lawns located in New Jersey?
    A

    Certainty Herbicide is only labeled for warm season turfgrass and would injure cool season turfgrasses. Unfortunately, since poa trivialis is also a cool season grass, there is not a selective herbicide that would kill the poa trivialis without also killing the desirable turf. 

    Spot treating the poa trivialis with a non selective glyphosate product such as Roundup QuickPRO would be recommended. Any bare spots in the lawn can be reseeded after 2 weeks if needed. 

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  • Asked by Michael from Louisville Ky
    06/03/2022
    Q
    Can Certainty Herbicide be used on Kentucky Bluegrass to kill johnsongrass in my lawn?
    A

    Certainty Herbicide is not labeled for use on Kentucky Bluegrass or other cool-season turfs. 

    Acclaim Extra Herbicide is labeled to treat johnsongrass in Kentucky Bluegrass lawns. According to the product label, you will apply 20 fl oz per acre (0.46 fl oz per 1,000 sq ft) as soon as the weeds begin actively growing.
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  • Asked by Aaron from Gahanna
    06/10/2022
    Q
    Can Certainty Herbicide be used on Scotts Sun and Shade Grass Seed without killing it?
    A

    Certainty Herbicide is labeled for warm season turfgrasses only and with Scotts Classic Grass Seed Sun and Shade Mix containing a mix blend of tall fescues and kentucky bluegrass, applying Certainty would injure your newly seeded lawn. 

    View our Weed and Disease Articles in our Lawn Care Guide for helpful information and recommendations for some of the most common weeds and our Cool Season Lawn Care Calendar for timing recommendations. 

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  • Asked by Mike from Sunbury Ohio
    06/20/2022
    Q
    What selective herbicide do you recommend for cool season (Central Ohio) Purple nutsedge?
    Thank you.
    A

    While Certainty Herbicide - 1.25 oz.  cannot be applied to cool season lawns SedgeHammer + Herbicide provides selective post-emergent control of purple nutsedge, and can safely be applied to well established cool season turf grass types such as Kentucky Bluegrass, tall and fine fescue, and perennial ryegrass.  Sedgehammer + is considered one of the more "gentle to turfgrass", if used as directed on the manufacturer's product label.

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  • Asked by Nick from Seattle Washington
    07/05/2022
    Q
    Can This Product be applied to Perennial Rye Grass
    A
    Certainty is labeled to control/kill perennial ryegrass. Please be sure to review the product label for more information.
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  • Asked by Cheryl from Heath, Texas
    08/12/2022
    Q
    Will Certainty harm the trees that are planted in my lawn?
    I have crepe myrtles and maple trees planted in the lawn. They have 3 ft diameter mulched tree rings around the trucks. I have Bermuda grass.
    A
    The Certainty Herbicide - 1.25 oz. label indicates this can be applied around established woody ornamental plants as a directed spray. Neither crepe myrtle nor maple are listed as tolerant to over-the-top sprays, so be careful that you do not spray exposed roots or any green leafy tissue of those trees to prevent harm.
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  • Asked by Robert from Dunnellon, Florida
    08/14/2022
    Q
    Will Certainly Herbicide kill chamber bitter in a Bahia grass lawn without harming Bahia grass. I
    Also, will this work as a pre-emergiant
    A
    Certainty Herbicide is safe for use on Bahia grass but is not labeled to control chamber bitter. It is also only a post-emergent it will not work as a pre. 
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  • Asked by Doug from Honolulu, Hawaii
    12/16/2022
    Q
    How long do you have to wait before planting any edibles after spraying with Certainty??
    A
    Certainty Herbicide is not typically applied in areas where edible vegetation is planted since its an herbicide for lawns. If an area of of lawn where it was applied is being converted into a vegetable garden area in the ground, the manufacturer recommends waiting at least 1 year from the last application before planting. 
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  • Asked by Keith from Sterling Heights,michigan
    04/21/2023
    Q
    Poa triviales problem in a KBG mix lawn in Michigan
    Looking at Tencity, which I've used for my poa annua problem and worked, but now looking like poa triviales is in. I see you offer Certainly but not clear if this is a good choice for my lawn?
    A

    Certainty Herbicide - 1.25 oz. is not labeled for Kentucky Blue Grass. For Poa Triviales in cool-season lawns, you will need to use Acclaim Extra Selective Herbicide 

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  • Asked by Michael
    04/24/2023
    Q
    Cool-season grass
    Is there an alternative for cool-season grasses that controls Poa triv like this product? Need help desperately. Thank you
    A

    Acclaim Extra can be used to remove poa trivialis from the listed cool season grasses on the label.

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  • Asked by Bill from Malden, Mo (se Cor Of Mo)
    05/22/2023
    Q
    What time of year to spray little barley?
    A

    The best time to use Certainty Herbicide - 1.25 oz. on little barley is when the weeds are actively growing. When temperatures are above freezing and below 85 degrees Fahrenheit.

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  • Asked by Stephanie from Sacramento, Ca
    11/26/2023
    Q
    Looking to control green kryllinga in the Sacramento area.
    Is it better to apply now (early December) or wait until closer to spring? I've got 1,100 SF of Kurapia.
    A
    When trying to kill green Kyllinga, it is best to apply Certainty Herbicide - 1.25 oz. when the Kyllinga is actively growing. The best time to apply is in the spring. 
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  • Asked by Martin from West Palm Beach, Fl
    03/02/2024
    Q
    Is anything labeled safe for killing globe sedge in Floratam St. Augustine?
    A

    You could use a product like Dismiss Turf Herbicide to kill sedge and other weeds in the area. The most effective sedge products kill the plant slowly, and can often take a repeat application after 6 weeks to see full control. Nutsedge spreads through nutlets and tubers below the ground, so often when you kill the top plant, some of the attached tubers a few inches over will sprout a new plant. This is what makes sedge so invasive and hard to eliminate.
     
     
     
     

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  • Asked by Kenneth from Rayle Georgia
    04/03/2024
    Q
    If I wanted to mix Certainty with other chemicals, what should my mixing rate be in gallons per acre?
    A

    Certainty Herbicide - 1.25 oz. is applied per acre with sufficient volume of water (10-50 gallons for ground equipment) to cover the acre (other mix rates listed on the label for smaller areas). The tank mixing instructions with other products can be found here.

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Displaying 141 to 154 (of 154 questions)