How to Make a Grub Killer


If you have been noticing drying patches of grass across your lawn, it may be suffering from unsightly grubs. Hidden below the surface, eating away on your green grass, these pests can easily destroy your lawn if left untreated. Because they are attracted to some of the ingredients in this homemade grub killing agent, you will be able to attract and successfully do away with these grubs, and get your lawn back to its old self again.

Step 1

Bring 8 cups of water to boil in a pot. Remove the pot from the heat and allow the water to cool to a lukewarm temperature. Pour the lukewarm water into a large glass jar.

Step 2

Add 2 tbsp. of Borax laundry assistant and 1 tbsp. of liquid dish detergent to the water and mix well.

Step 3

Add 2 cloves of fresh garlic, 1 whole medium-size onion and 1 whole hot pepper to the jar and mix well.

Step 4

Place lid on jar, and allow it to sit overnight. Remove the lid the next morning and stir again.

Step 5

Apply the grub killer to your lawn and garden using a 16 oz. spray bottle. Add 3 to 4 tablespoons of the grub-killing mixture to 3 cups of water in the spray bottle for each application.

Step 6

Water your lawn where it is affected by the grubs. Spray the affected area with enough solution to thoroughly saturate the ground.

Things You'll Need

  • Water
  • Large glass jar with lid
  • Borax laundry assistant
  • 2 whole garlic cloves
  • 1 whole hot pepper
  • 1 medium onion
  • Liquid dish detergent
  • 16 oz. spray bottle


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Keywords: grub killing mixture, killing grubs, making grub killer

About this Author

Jason M. Bruner is a freelance writer who has been in the field for more than five years. His content has been previously published on sites such as eHow.