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.

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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.

icon We explain more important tips in our blog post, so Please read this first!!icon


  • 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.

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

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! :)

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Alexis @ Chemistry Cachet
Want more details about this and other DIY projects? Check out my blog post!
Frequently asked questions
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3 of 249 questions
  • Gerri McGrath Gerri McGrath on Feb 26, 2024

    I found cleaning vinegar. It’s 10% acetic acid as opposed to regular vinegar which is 5%. Got at the grocery store.

  • Michele Kempner Ashby Michele Kempner Ashby on Mar 04, 2024

    Will this work on bedbugs too?

  • Heather Heather on Apr 20, 2024

    How do you prevent the salt from clogging the sprayer? It gets stuck in the head of sprayer, thus clogging it.

Join the conversation
7 of 274 comments
  • Dawn Dawn on Feb 27, 2024

    I have been putting whole cloves and bay leaves on every shelf of my cupboards to keep away insects and especially, Boll weevils . It works. My next issue is keeping the cats off my car. I’m tired of looking at all their paw prints those 20 feral cats out there making me crazy.

    please don’t respond about litter control. The county I live in doesn’t care nor do the people that live around me enough to stop feeding them or at least trap them and get them fixed

    • See 3 previous
    • Wanda Rodgers Wanda Rodgers on Mar 04, 2024

      That must be a thing to do now. Our town captures the cat, has them fixed notches their ears and releases them back into the neighborhood. That doesn’t completely stop the over population but does slow it down.

  • Nee Nee Nee Nee on Mar 02, 2024

    Place where only they can get it.

    • Lisa Lisa on Mar 03, 2024

      Oh no Nee Nee...an animal gets into antifreeze is a miserable death. I say trap and take to a shelter. Let them put the animal down if they need to in a humane way.