How to Make Weed Spray


A natural and powerful weed killer can be made from common products found in the home. Household vinegar contains acetic acid, which is a natural weed killer and also lowers the pH of the soil to prevent weeds from growing. A basic combination of vinegar, salt and liquid soap makes an environmentally friendly solution that will destroy weeds. This homemade weed killer can be used to selectively spot treat weeds, or to soak the soil to prevent weed growth.

Homemade Weed Killer

Step 1

Combine 1 gallon of white or apple cider vinegar, 1 oz. of liquid soap and 1 tbsp. of salt in an empty bucket. The acetic acid in the vinegar will kill the weeds, and the salt helps to dry up any remaining moisture. Liquid soap adds to the effectiveness of the vinegar.

Step 2

Mix solution well and transfer a small amount into an empty plastic spray bottle.

Step 3

Spot spray the homemade weed killer directly onto weeds to kill the plant. Only spray the vinegar solution onto areas with weed problems because the vinegar can be harmful to grass and other plants.

Step 4

Pour remaining solution onto the soil to prevent future weed growth.The vinegar will continue to prevent weed growth.

Tips and Warnings

  • The percentage of acetic acid in household white vinegar is low at approximately 5 percent and reapplication of the weed killer may be necessary.

Things You'll Need

  • Plastic spray bottle
  • Empty bucket
  • White or apple cider vinegar
  • Liquid soap
  • Salt


  • The Vinegar Institute: Uses and Tips
  • The Garden Counselor: Lawn Care
Keywords: weed killer, white vinegar, homemade weed killer

About this Author

Although born and raised in Southern California, Kristin Kosearas has traveled far and wide. Kosearas caught the travel bug after graduating from UC Irvine with a degree in political science, and those experiences are embedded in her writing, found in several school publications and for eHow via Demand Media. She also has work experience in education and the beauty industry.