Homemade Roach Spray (Good for Ants and Other Bugs Too)

4 Materials
5 Minutes

Do you know what the number one question was we were asked this summer? How to get rid of roaches! One of our popular posts is our homemade ant spray, so readers want to know about other insects too. Especially roaches!

I just used a bunch of this homemade spray because a random trail of ants showed up on my front porch, and I didn’t want Amelia to get in it. I spray it to safely kill the ants and and things like roaches. It was safe for her, safe for the dog, and killed the ants.

Before we share the recipe, please head to our blog post. We have very important tips on keeping your home clean and free from bugs. This is always the first step when dealing with something like roaches or ants. They travel to find water and shelter.

 Please read this first!!


  • 2 cups of vinegar, distilled
  • 2 cups of water
  • 3 tablespoon dishwashing liquid
  • 3 tablespoons table salt
  • Spray Bottle


  1. Mix ingredients together, add to a spray bottle.
  2. Shake well before spraying each time.

 To learn more about the science behind these ingredients, please visit our link here.

To INTENSIFY this solution:

If you have larger roaches to deal with, eliminate the water in the solution above and replace with additional vinegar. This means the solution will contain 4 cups of vinegar, 3 tbsp dawn, 3 tbsp salt. I have used it on small roaches and it kills them instantly.

Remember to check out chemistrycachet.com for more science based tips! :)

Suggested materials:
  • Vinegar   (Store)
  • Dish Soap   (Store)
  • Salt   (Store)
See all materials
Alexis @ Chemistry Cachet
Want more details about this and other DIY projects? Check out my blog post!
Frequently asked questions
Have a question about this project?
3 of 229 questions
  • Bunny Bunny on Aug 06, 2022

    Can you use your remedy here in your garden that has flowers, herbs growing in it? OK to spray directly on soil?

  • Judy Hansen Judy Hansen on Aug 09, 2022

    Can this be used on plants that may have mealy bugs or aphids?

  • Tammy Tammy on Sep 14, 2022

    What is a good homemade remedy for Head lice

Join the conversation
2 of 241 comments
  • Lynn Lynn on Aug 05, 2022

    We use apple cider vinegar with a few drops of Dawn in a small bowl to attract and kill fruit flies - works wonders!

  • Marcam1977 Marcam1977 on Aug 06, 2022

    Thank you...However, the link you provided doesn't work.