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How to use vinegar & salt as a weed killer

Updated July 20, 2017

It is not always necessary to buy store-bought weed killer in order to remove weeds in your garden, driveway or flower bed. Vinegar and salt make excellent weed killers on their own, and form a deadly combination when combined. Vinegar draws moisture out of the weeds it is applied to, whereas salt prevent the weeds it is applied to from absorbing water.

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  1. Place a few grains of salt at the base of the weeds you wish to kill. Once the salt absorbs into the soil, it will prevent the weed from absorbing water into its roots.

  2. Pour vinegar into a spray bottle and spray it onto the weeds you wish to kill. Once the vinegar absorbs into the leaves of a weed, it will begin drawing moisture out of the plant. If you do not notice browning of the weed's leaves within 24 hours, reapply the vinegar to the weed.

  3. Mix 1 gallon of vinegar with 1 cup salt to apply both of these elements to a weed at the same time. Pour this mixture into a spray bottle and spray it onto the weeds. As the vinegar soaks into the weeds, it will draw moisture out of the leaves. As the salt soaks into the soil, it will prevent the roots of the weeds from absorbing water.

  4. Warning

    Be careful not to spray the vinegar on any plants you do not want to kill. It is a non-selective weed killer, and it can kill any plant you spray it on. Take these same precautions when using salt as a weed killer. Using too much salt can affect the roots of plants surrounding your weeds.

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Things You'll Need

  • Salt
  • Vinegar
  • Spray bottle

About the Author

Wesley DeBoy has been a writer since 2004. He has a variety of arts and entertainment articles published on various websites. DeBoy specializes in writing about professional audio, music and computer technology. He holds a Bachelor of Arts in telecommunications production from Ball State University.

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