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

4 Materials
$1
5 Minutes
Easy

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


Ingredients:


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

Directions:


  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!
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  • Robin Robin on Jul 23, 2026

    Cinnamon rids ants , just sprinkle watch them disappear . My mother taught me this decades ago

    • Rai164739781 Rai164739781 on Jul 23, 2026

      I make a paste, and slather it at the entry point. I've also read that you can make a spray with Cinnamon Oil or Tincture maybe, can't remember which, but it was a liquid form of cinnamon. I've actually seen ants in a line, marching into the house, and encountering the cinnamon and make an immediate about face. Then they exchange sniffs with the incoming ants, as they exit. But the incoming ants need to check it out for themselves, at which point, they too turned around! It was crazy!

  • Ne7247926121 Ne7247926121 on Jul 23, 2026

    That's about the same formula to get rid of weeds.

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