Trimec Southern Broadleaf Herbicide - Questions & Answers

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  • Asked by Tom from Meadowlakes
    02/28/2025
    Q
    Can you mix Trimec Southern Broadleaf Herbicide and Fahrenheit Herbicide? If so can it be used on both Bermuda and St Augustine?
    A

    If you want to mix Trimec Southern Broadleaf Herbicide with another herbicide we would recommend doing a jar test first for compatibility. However, if you mix Fahrenheit Herbicide with a surfactant, it is not recommended to tank mix it with Trimec 

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  • Asked by Ernest from Pembroke, N.c
    01/20/2025
    Q
    Can I use this on centipede lawns as a broad-leaf weed killer?
    A

    Yes, Trimec Southern Broadleaf Herbicide is for use on Southern grasses such as Bermudagrass, Bentgrass, Bluegrass, Fescue, Zoysiagrass, Centipedegrass, and St. Augustinegrass.
     

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  • Asked by Tim from Mo
    06/05/2022
    Q
    Will Trimec Southern Broadleaf Herbicide kill creeping charlie in a zoysia lawn?
    A

    Yes, Trimec Southern Herbicide is labeled for ground ivy (creeping charlie). Please refer to the product label for complete mixing and application instructions.

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    3 of 4 people found this answer helpful.
  • Asked by Mike from Americus, Ga
    03/28/2022
    Q
    Will Trimec Southern Broadleaf Herbicide kill spiderwort?
    A

    No, Trimec Southern Broadleaf Herbicide is not labeled for spiderwort. 

    Unfortunately there are not many products that are labeled to help control spiderwort but we were able to find Monterey Spurge Power is labeled to help kill it and it can be used on zoysiagrass. Please read the product label for complete application instructions.
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  • Asked by Brenda
    01/11/2022
    Q
    Can Trimec Southern Broadleaf Herbicide be applied during winter months for actively growing weeds in dormant bermuda?
    t
    A

    You could potentially apply Trimec Southern Broadleaf Herbicide to dormant Bermudagrass. Be sure the air temperature is at least 50 degrees for this product to be effective.

    An option that would work better in cooler temperatures is Fertilome Weed Free Zone since it is an ester formulation that has better cool-weather performance.

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    1 of 1 people found this answer helpful.
  • Asked by Tom from Pine Knoll Shores, Nc
    09/17/2021
    Q
    Will Trimec Southern Broadleaf Herbicide kill prostrate spurge?
    Good on St Augustine?
    A
    Trimec Southern Broadleaf Herbicide is labeled to control spurge and can be safely used as directed on the product label.
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  • Asked by David from Canton, Ga
    09/08/2021
    Q
    Is it too late in the year to use Trimec Southern Broadleaf Herbicide for weed control in my lawn?
    A

    The application timing for Trimec Southern Herbicide can vary from region to region. You do want to make sure that the weeds you are treating are actively growing at the time of application, and apply when temperatures are between 65-85 degrees. It is best to apply when the weeds are first growing, rather than when they are well-established. 

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  • Asked by Marty from Americus Ga
    09/03/2021
    Q
    What is the rate of Trimec Southern Broadleaf Herbicide to treat 1 acre and how much water?
    A

    Trimec Southern Broadleaf Herbicide is applied at the rate of 0.37 - 0.75 oz per 1,000 sq. ft. (2 - 3 pints per acre). The product label recommends to use a water volume ranging from 2 to 300 gallons of water per acre. Generally, 1 gallon of water per 1000 sq ft are is sufficient to evenly distribute the active ingredient. To treat 1 acre, you would need 44 gallons of water. 

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  • Asked by Sharol from Rockfield, Ky
    06/26/2021
    Q
    We have sections of southern sage. Does Trimec Southern eliminate this, but not our red clover?
    A

    Trimec Southern Broadleaf Herbicide should not be used where desirable clovers are present

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  • Asked by Lynda from Carriere, Ms
    05/25/2021
    Q
    Will Trimec Southern Broadleaf Herbicide kill burroweed in our Centipede lawn?
    A

    Trimec Southern Broadleaf Herbicide is safe to use on Centipede grass, and does include lawn burweed on the list of weeds controlled.  You can refer to the product label for use rates specific to your lawn type, and for complete application instructions.

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  • Asked by Drexel from Columbia, Sc
    05/12/2021
    Q
    Can someone verify .5 oz per gallon of Trimec Southern Broadleaf Herbicide for St Augustine?
    Label doesn't say how much water, only .5oz per 1000 sq. This is Palmetto St Augustine.
    A

    The water volume you use when applying the Trimec Southern Broadleaf Herbicide, or any other product that gives you an amount per 1000 sq/ft on the product label, will vary from person to person and application to application. The water is merely the carrier to get the amount of chemical evenly distributed over the desired amount of treatment area.  In order to know how much water to use we advise you measure out a 20 x 50 or1000 sq ft area and spray it with just water. When you are finished, look to see how much water it took you to cover 1,000 sq. ft.  Typically it should be somewhere between 1-2 gallons and this is the amount of water you will mix with your .5 oz of Trimec Southern Broadleaf Herbicide to cover 1,000 sq. ft. 

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  • Asked by Rick from Kansas
    04/01/2021
    Q
    Will Trimec Southern Broadleaf Herbicide kill ryegrass in overseeded bermuda.
    A

    Trimec Southern Broadleaf Herbicide is not labeled for ryegrass, but Negate 37WG can be used to control annual and perennial ryegrass in bermudagrass. 

     

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    1 of 1 people found this answer helpful.
  • Asked by No
    03/26/2021
    Q
    Can you mix a fertilizer with Trimec Southern Broadleaf Herbicide?
    A

    Most EPA-registered herbicides like Trimec Southern Broadleaf Herbicide and fertilizers can safely be mixed together so long as the labeled rates are followed.   We recommend that you read and follow the label instructions to prepare a tank mix test to make sure the products are compatible

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  • Asked by Stephen from Ft Worth Texas
    04/08/2020
    Q
    Can Trimec Southern Broadleaf Herbicide be mixed with Bifen IT and applied at the same time?
    A

    Yes, you can mix the Trimec Southern Broadleaf Herbicide and Bifen IT and apply them in the same application if doing a blanket application.  Please refer to each product label for complete instructions.

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    4 of 6 people found this answer helpful.
  • Asked by Misty from Cookeville, Tn
    02/02/2020
    Q
    Will Trimec Southern Broadleaf Herbicide kill wild onion in turf type tall fescue grass?
    A

    Yes, Trimec Southern Broadleaf Herbicide is labeled to target wild onion and is safe to use on a fescue lawn. Please review the product label for application instructions.

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    6 of 7 people found this answer helpful.
  • Asked by Glenn from Stockbridge, Ga
    02/01/2020
    Q
    When is a good time to apply Trimec Southern Herbicide?
    A

    The application timing for Trimec Southern Herbicide can vary from region to region. You do want to make sure that the weeds you are treating are actively growing at the time of application, and apply when temperatures are between 65-85 degrees. It is best to apply when the weeds are first growing, rather than when they are well-established. 

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    2 of 2 people found this answer helpful.
  • Asked by Tom from Bradenton Fl
    01/04/2020
    Q
    Is trimectin southern safe to use on my winter cover of annual rye
    I have a Bermuda lawn that I over seeded with annual rye for a green winter cover. I'm getting some broad leaf infiltration. Will trimec hurt the annual rye?
    A

    Trimec Southern Broadleaf Herbicide should not be applied to ryegrass or areas that were newly seeded/overseeded.

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    3 of 3 people found this answer helpful.
  • Asked by Rich from Freeport
    10/14/2019
    Q
    Can I spray Atrazine after using Trimec Southern?
    Is there any time interval required to use 4% Atrazine on Centipede after broadcast spraying Trimec Southern?
    A

    Since the Trimec Southern has a retreatment application of 30 days, we generally recommend waiting that long to apply another post-emergent herbicide. Centipede is a pretty sensitive turfgrass, so you do not want to put too much stress on it at once by applying multiple post-emergent herbicides at the same time. You may be ok waiting 1-2 weeks between these applications, but we suggest testing a small area for tolerance before treating the entire lawn.

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    1 of 1 people found this answer helpful.
  • Asked by Kim from New Fairfield, Ct
    09/10/2019
    Q
    Can I have Trimec Southern Broadleaf sent to Connecticut?
    A

    Yes, Trimec Southern Broadleaf Herbicide can be shipped to CT. Please keep in mind that this product is designed for use on Southern lawns like Bermudagrass, Bentgrass, Bluegrass, Fescue, Zoysiagrass, Centipedegrass and St. Augustinegrass. 

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  • Asked by Danny from Leland, Nc
    09/08/2019
    Q
    Will Trimec Southern Broadleaf Herbicide kill Korean clover?
    A

    Trimec Southern Broadleaf Herbicide does not specify Korean clover on the product label, only clover in general.  

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Displaying 1 to 20 (of 122 questions)