MSMA Mix Rates

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MSMA is a great solution to kill crabgrass, dallisgrass, sandburrs and many other noxious weeds.  If you plan to use MSMA to eliminate your crabgrass, be sure to thoroughly read the label and follow all precautions and directions.

While you should always defer to the directions printed on the MSMA label, the mix rate scale below can be used as a general rule of thumb.

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MSMA Mix Rates

29 Responses

    • Byrdie

      MSMA can be used prior to overseeding. Give it a week or two after the last application before you sow grass seed.

  1. Arthur Nash

    Can this product be used on Bermuda Tiff lawn. When MSMA was available in Texas, it worked very well for me.

    Please advise.

    Thank you

  2. Bryan

    I have a couple of questions

    1. Should MSMA be applied before or after cutting grass?
    2. I also bought some 13-13-13 fertilizer. Does it matter when to spray MSMA and apply the fertilizer?
    3. How does rain affect MSMA? Should I apply when it is NOT going to rain for a few days ?

    • Byrdie

      1) apply after making a cut
      2) application of the fertilizer should not matter
      3) MSMA is rain-fast when dry. Try not to spray when a gully-washer is coming, but otherwise, you should be fine.

      • Jara parrish

        Should I apply msma before I cut my grass full of stickers or after?

        • Byrdie

          You certainly would not want to apply MSMA and then immediately cut the turf. Apply forst and then wait 4-5 days before you cut.

  3. G. Keller

    How long will MSMA keep in original jug since I have a small lawn and won’t use much at a time ?

  4. Sherrie Allen

    Can you spray MSMA when temps are above 70, but will rise to above 90 during the day?

    • Byrdie

      Sherrie….you can spray MSMA when temperatures are between 70 and 95. Above that, you need to be careful.

  5. Doug

    Thank you for the great price and quick shipping of my MSMA. I am very anxious to see how it helps with the mess of sandburrs we have. I have a couple of questions.

    1. Does MSMA have to be watered in if there is no rain expected for a while or is it absorbed through the leaves like roundup?

    2. If not watered in how long will it take for animals to be allowed back onto the treated area?

    • Byrdie

      MSMA is not labelled for grazing. Please check the label to make sure you are using it properly. If you have any questions, please feel to call us at the store.

  6. Shane

    I have a lot of nut grass in new Bermuda sod that was laid about 4 weeks ago getting worse everyday. Is it safe to treat with MSMA at this time?

    • Byrdie

      Shane. You should let the Bermuda sod get established before you attempt any weed control. That would mean cutting it 3-4 times. After that, try Sedgehammer. This is a great product for nutgrass.

  7. Zach

    Can MSMA be used as a pre emergent or is only recommended for post emergent treatment?

    • Fuller Sasser

      MSMA is a post-emergent only. However, it can be combined with pre-emergent herbicides like prodiamine or dithiopyr to create a powerful one/two punch.

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