Tupersan 50 WP Pre-Emergent Herbicide - Questions & Answers

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  • Asked by Brian
    03/19/2011
    Q
    What is the usage rate and square footage coverage for small scale (1 acre) applications?
    A

    The first thing you need to know when using an herbicide such as Tupersan WP is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1 1/2 oz - 9 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1 1/2 oz - 9 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application.

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    35 of 42 people found this answer helpful.
  • Asked by Brandon
    04/10/2011
    Q
    Does this product work to keep crabgrass from Bermuda grass?
    A
    This product will suppress crabgrass, but it is also labeled to suppress Bermuda grass.  This product is really intended more for golf courses that are trying to keep crabgrass and Bermuda grass from creeping onto the greens and fairways.  For keeping crabgrass out of Bermuda, we recommend Drive XLR8.  It is labeled for treating crabgrass on Bermuda turf.
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    8 of 10 people found this answer helpful.
  • Asked by Ken
    05/14/2011
    Q
    How much Tupersan 50 WP do I need to add per gal for 1000 sq ft?
    Can I use a hose end sprayer? If so, how much product per gal do I mix up to put in hose end sprayer?
    A
    The first thing you need to know when using an herbicide such as Tupersan WP is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1 1/2 oz - 9 oz of Tupersan per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1 1/2 oz - 9 oz of product for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application. We do not recommend using a hose end sprayer for this type of application.
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    8 of 14 people found this answer helpful.
  • Asked by Tony from Joelton, Tn
    01/09/2012
    Q
    What to use to kill Bermuda grass in landscaped areas?
    I want to keep Bermuda grass out of my garden, that is surrounded by my lawn. My thought is to use this around the edges of the garden. Is there a smaller package available for small applications?
    A
    If you are looking to keep Bermuda grass out of landscaped areas, then your best option would be to use Fusilade II which kills grassy weeds selectively, or to spray a barrier of glyphosate around the perimeter of the bed as well to keep grass out.  It is also recommended to use an edger to cut off grass encroaching into the beds.  Tupersan is more for broadleaf weeds out of turf grass, and you need something that kills turf grass.
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    6 of 7 people found this answer helpful.
  • Asked by Kathy from Uniontown Pa
    02/26/2015
    Q
    Is Tupersan WP in 4lb paper bag 10 years old still effective?
    I have 11 bags-It has been stored in the original cardboard box and kept very dry. Would it still be effective? What is the shelf life?
    A
    Tupersan 50 WP normally last up to 5 years if stored in a cool dry area. Please contact PBI Gordon 800-821-7925 to make sure that your product is effective or not. 
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    6 of 6 people found this answer helpful.
  • Asked by Tad
    02/25/2011
    Q
    What is the application rate of Tupersan 50 WP? How much for a 15,000 square foot lawn?
    I understand that the lawn may require several applications to keep suppressing germination of unwanted weeds through the summer. I need to know how long a bag might last.
    A
    Depending on the type of grass you are treating, when you are treating and if you plan to do one treatment or two sequential treatments, you will need 1.3 lbs - 8 lbs for a 15,000 sq ft area. You can find more usage rate information on the product label which is always available on our website on the Tupersan 50 WP product page. You will need to refer to page 4 of the product label for usage rate information for lawns.
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    3 of 7 people found this answer helpful.
  • Asked by Darcy from North Port Fl
    05/11/2014
    Q
    When measuring Tupersan per 1000 sg ft. is that measurement weighted or measured volume?
    1 1/2-9oz of Tupersan weighed or measured in a measuring cup. Thanks
    A
    Tupersan 50 WP is the measured in weight of product.

     

    The first thing you need to know when using an herbicide such as Tupersan WP is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1 1/2 oz - 9 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1 1/2 oz - 9 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application. I hope this information is helpful.

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    2 of 5 people found this answer helpful.
  • Asked by Misty from Cookeville, Tn
    02/16/2020
    Q
    How long does Tupersan 50 WP Pre-Emergent Herbicide provide weed control for? I can't find that information anywhere.
    TTTF grass in Mid TN.
    A

    Per the manufacturer Tupersan 50 WP Pre-Emergent Herbicide can last up to 4-6 weeks depending on the amount of rainfall received in the area.  You can reapply 4 weeks after an initial application if needed.

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    2 of 2 people found this answer helpful.
  • Asked by Cj from Monroe, Ny
    06/28/2017
    Q
    Is it too late to use Tupersan 50 WP?
    It's end of June in southern NY. It's been a cool spring.
    A

    Tupersan 50 WP is a pre-emergent herbicide that should be applied when the soil temperatures are around 55 degrees and prior to the emergence of the weed you wish to eradicate. After the seeds from weeds have warmed up they germinate rendering the pre-emergent applications useless. If you are past this point, Post-emergent weed control applications will need to be used.

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    2 of 3 people found this answer helpful.
  • Asked by Michael from Monroe, Ga
    12/01/2015
    Q
    Can Tupersan 50 WP be used to kill bermuda on a creeping bentgrass green?
    We have had some Bermuda pop up in our bentgrass and have heard that Tupersan can kick back the Bermuda. If this can be used what is the best way to apply and at what rate and ground temperature is the product most effective?
    A

    Tupersan 50 WP is labeled for Bermudagrass suppression into creeping bentgrass greens. Per the product label:

    "Greens established with creeping bentgrass may be surrounded by bermudagrass collars and aprons...The selectivity of Tupersan Herbicide can suppress the bermudagrass encroachment without injury to the bentgrass. Tupersan Herbicide can be applied as a band treatment along the perimeter of the greens to suppress the stolon growth of the bermudagrass. Use 1/2 - 1 pound of Tupersan Herbicide per 1,000 sq. ft. and apply in a 8-12 inch band with a single nozzle sprayer. Schedule the initial application during March or April and continue with subsequent applications at the same rate at 4-5 week intervals."

    Keep in mind that Tupersan is a pre-emergent herbicide and will not kill exisiting bermudagrass. You should also test a small area before broadcasting over a large area as not all cultivarrs of Bentgrass have been tested with Tupersan.

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    2 of 2 people found this answer helpful.
  • Asked by Ron from Ethridge Tennessee
    03/12/2014
    Q
    I want to till old yard and then treat for crab grass, how long do I wait before raking and laying down sod?
    A
    To better answer your questions, please call us at 866-581-7378. There are numerous variables that would affect the application of Tupersan 50 WP. We look forward to speaking with you soon!
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    2 of 2 people found this answer helpful.
  • Asked by Ken
    05/14/2011
    Q
    When is the best time to apply this product, spring or fall?
    A
    Unfortunately you did not indicate what type of grass you have or what region you are located in, so we cannot provide you with a specific answer. Please take a few minutes to read over the Tupersan product label to find the application timing that fits your needs. You can find this information on page 3 of the product label. We have linked the product label in this answer for your convenience but you can always find product labels on the individual product pages for every product on our site.
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    2 of 4 people found this answer helpful.
  • Asked by Mimi from San Jose, Ca
    03/26/2014
    Q
    Will Tupersan kill early stage barnyard grass?
    I keep having barnyard grass coming up in my newly seeded lawn.
    A
    Yes, Tupersan 50 WP is a pre-emergent that will stop the emergence of barnyardgrass from growing and can be applied at the time of seeding without causing injury to germinating seedlings of most cool-season grasses.
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    1 of 1 people found this answer helpful.
  • Asked by Jim from Vancouver, Wa.
    03/24/2015
    Q
    New seedings
    I live in the Pacific Northwest (Portland Oregon area). I just have my lawn hydro-seed last weekend (3/21/2015). I believe it was Fescue. Not sure which type, or if there is any other cool season grasses mixed in it. Can I use this now to prevent crab grass? And will this have any effect on Poa Annua?
    A
    According to the label for Tupersan Herbicide, it is recommended that the product can be applied after the onset of tillering and after the grass seedlings have developed an adequate secondary root system. Usually, five or six leaves of the grass seedlings are visible when the first tiller appears.
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    1 of 1 people found this answer helpful.
  • Asked by Sharon from Big Springs Wv
    01/24/2014
    Q
    Is Tupersan 50 WP safe for horse pasture?
    A
    Tupersan 50 WP  is not specifically labeled for pastures and should not be applied to areas for feed purposes per the product label. We recommend that you contact the manufacturer for additional information on the product usages. PBI Gordon Corporation can be reached at 800.821.7925.
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    1 of 2 people found this answer helpful.
  • Asked by Wayne from New Jersey
    05/12/2018
    Q
    I have a customer that has Tupersan wp that is about 10 years old. Is it still good?
    A

    Tupersan 50 WP has a shelf life of about 3-5 years.  Past that we cannot say how effective the product would be.  You could try reaching out to the manufacturer to confirm, PBI Gordon can be reached at 800-821-7925

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  • Asked by Mike from Oceanside, Ny
    05/25/2018
    Q
    When would be the best time to apply Tupersan 50 WP? Is it pet safe?
    A

    Tupersan 50 WP should be applied prior to germination of the listed/targeted weeds according to product label instructions. The pets should not be present during the application and can return only when completely dried. For specifics on timing in your area you can contact your local cooperative extension office Master Gardener.

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    0 of 1 people found this answer helpful.
  • Asked by Karla from St Joseph, Mo
    04/08/2019
    Q
    I am putting down new seed in an almost bare yard that had crabgrass last year - when do I apply the Tupersan?
    Also, how many ounces of tupersan do I use for 1,000 square feet of lawn?
    A

    According to the label for Tupersan Herbicide, it is recommended that the product can be applied after the onset of tillering and after the grass seedlings have developed an adequate secondary root system. Usually, five or six leaves of the grass seedlings are visible when the first tiller appears.

    Rates depend on the type of grass you are treating, when you are treating and if you plan to do one treatment or two sequential treatments.  The first thing you need to know when using an herbicide such as Tupersan WP is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1 1/2 oz - 9 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1 1/2 oz - 9 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application.

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  • Asked by Lisa from Minneapolis
    03/10/2021
    Q
    When applying Tupersan 50 WP Pre-Emergent Herbicide, what precautions do I need to take with my pets? Is there a time period post application during which pets should be kept off the treated lawn?
    A

    When applying a product such as Tupersan 50 WP, the pets should be kept out of the area while you make the application and until the treated area is completely dry. Once the treated area is dry, then, it is safe to resume normal activity. Please be sure to review the product label for more information and complete application instructions.

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Displaying 1 to 19 (of 19 questions)