3-Ingredient DIY Ant Spray
This DIY Ant Killer is nontoxic, easy to make with 3 household ingredients, and works better than store-bought sprays! Safe to use in a home with kids and pets!
DIY Ant Killer (That Works!)
If you live in a warm climate, then chances are you’ve dealt with pesky ants. Whether they’re sneaking onto your countertops or terrorizing your garden, ants are major pests super stubborn and hard to get rid of.
That’s why this natural ant repellent spray is so amazing— it’s safe, easy, cheap, and IT WORKS!
Do you have an ant infestation you’re trying to get rid of? Or, maybe you wonder if there are other (more natural) ways to keep the ants from coming back? You are in the right place.
Here’s how I came to create this natural ant killer…
Last Valentine’s Day, an army of ants invaded our bedroom. A small box of candy had fallen behind one of our nightstands, unnoticed, and by the time we figured out what the ants were after, they were well settled into their path.
I tried all sorts of things to get rid of them, from home remedies, to bleach to strong commercial cleaning sprays, but they always came back. Then I did a little research for natural remedies and put them together in a spray bottle.
The best part about this ant killer recipe is that it is safe to use around kids and pets (unlike a lot of the toxic store-bought varieties or other DIY recipes that use borax or boric acid).
Related: Be sure to try our all-natural Soothing Homemade Itch Relief Spray for Bug Bites too!
What real-life readers have to say about our homemade ant spray:
“Worked almost instantly!” – MH
“It worked for us and was safe for my dog.” – TL
“Sprayed it outside on the deck and so far the ants are gone.” – FS
“I tried this and it really worked! Thanks for suggesting it!” – FR
“I just used it and it works GREAT!!! The ants DO NOT like it at all!” – NF
Note: One of the most common reader questions I’ve gotten from this post is “what about roaches?!” Here in the south, roaches are a thing, whether or not you have a messy house! That definitely came as a shock, but you can do things to keep those yucky roaches in check. Try our new 2-ingredient natural homemade roach killer too!
Ingredients
For your convenience, I’ve provided shop-able ad links to products used to make this natural ant repellent spray; read our disclosure policy here.
- 2 cups apple cider vinegar or white vinegar
- 2 Tablespoons liquid dish soap
- 2 Tablespoons baking soda
- Water, as needed
Instructions
One of the most common household pest problems is ants. Learn how to quickly solve an ant problem with just a few common ingredients!
- Combine vinegar, dish liquid, and baking soda powder in a large bowl and stir gently. Pour mixture into an industrial spray bottle. Add water as needed to fill the remainder of the bottle.
- Make sure you mix this ant repellent spray over the sink — when you add baking soda to vinegar it creates a lot of foam! I add ingredients slowly, allowing foam to settle before adding more. (Kind of like pouring soda over ice).
- We use a large industrial spray bottle because they don’t clog and they last longer than the cheapie bottles. I can’t even tell you how many cheap plastic bottles I’ve thrown away in the past. The industrial bottles last for years though! Make sure that the foam has completely settled before securing the bottle’s lid.
A printable copy of our non-toxic ant killer recipe is available at the bottom of the post.
How to Use Our Homemade Ant Repellent Spray
- Spray on any ants you see, as well as the ants’ trails and surrounding area. Allow to sit for a few minutes, then wipe clean with a damp rag.
- I always spray into the ants’ entry points too: cracks in the floor, windowsills, etc. You can spray and let sit over entry points to keep the ants from coming back.
- Clean up any crumbs or food source that may be attracting the ants.
This is such a simple concoction, but it works so well — and it smells nice! Even better, you don’t have to worry about getting harsh chemicals everywhere (definitely a plus in a house with kids and/or pets!)
Frequently Asked Questions
How Long Does the Ant Spray Stay Good?
I find that it lasts pretty much indefinitely! I always keep a bottle of my homemade ant spray under the sink, so it’s handy when I need it. I usually go through a bottle in a few weeks or a couple months, so it definitely stays effective for that amount of time. If it’s been a year since you used yours, you may want to mix up a new batch.
How Do I Keep Ants From Coming Back?
This depends on the type of ants you’re dealing with. Sugar ants and kitchen ants will usually stay away once you’ve disrupted their scent trail. You also want to make sure that you’ve removed the food source that is attracting them and cleaned the area thoroughly.
Fire ants are trickier, because they have a nest somewhere outside. In order to get rid of the colony, you have to kill the queen ant and she is usually hiding deep within their underground mound. Fire ants are extremely common in the part of Texas where we live and they are a horrible pest. I deal with them in a 2-step process: kill any that I see with my spray. I also use fire ant bait on the mound itself to keep them from returning.
Can I Use this Ant Spray in My Garden?
Yes, but I always recommend spot-testing first when working around plants. Some plants may be sensitive to the ingredients used and we’re not trying to harm our plants after all!
What I usually do in the garden is to spot-kill fire ants with my spray. Then I sprinkle diatomaceous earth on the soil around the plants to protect them from any ants that may return.
Keep in mind that many ants are beneficial to your garden as they stir up and aerate the soil. However, fire ants can be destructive, not to mention painful if you accidentally stumble upon them!
Learn More: For more tips and tricks (cinnamon, peppermint oil, etc.) check out this post about natural ways to keep ants out of the garden.
Printable Copy of Our Homemade Ant Killer Recipe
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The Best Homemade Ant Killer (Kid & Pet Safe)
Ingredients
- 2 cups apple cider vinegar
- 2 Tablespoons dish liquid
- 2 Tablespoons baking soda
- Water as needed
Instructions
- Combine vinegar, dish liquid, and baking soda in a large bowl and carefully mix to avoid foaming up over the bowl.
- Pour mixture into a spray bottle.
- Add water as needed to fill the remainder of the bottle.
Video
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Wanted you to know I made this ant killer and realized it is a great cleaner too. Thanks,
Wonderful! Glad you found it so helpful!
hey, i just remember the best BEST Flea killer!!.. if u have pets, or peeps in and out all day, mix DAWN (blue) Dish Soap, with water, (dont take much Dawn), and spray EVERYTHING, clothes, shoes, kids, (even wash your pets in it), rugs, etc. till it fills alittle damp. boom! DEAD FLEAS.. every time!!!!!.. And it cleans 😉
Is this effective for cockroaches as well?
Hi Terry – I haven’t tested this out specifically on cockroaches. They’re usually pretty fast and resistant to almost everything except smashing, but it could be worth a try!
So if I mixing this in a bucket how much water am I adding?
I would mix all ingredients except water in the bucket, then slowly pour into your squirt bottle. Then you can top off the remaining space in the bottle with water. Hope this helps!
I have been invaded with sugar ants. I saw your recipe and just mixed it up and sprayed them. It did kill them and hope I got all of them. I will keep spraying them if they come back. I sure hope it keeps them at bay. Thank you.
We came home from our Yellowstone vacation to find ants everywhere in our kitchen, refrigerator and even freezer. I looked up natural remedies and seen your recipe. It’s a true miracle this recipe works!!! I’ve tried natural and the regular poison stuff and nothing ever works. My husband said that stuff you made was a miracle. Thank you for this recipe! I don’t ever have to waste time/money on other stuff. Ants are dead now, thank goodness.
Wonderful! I also found that many of the store bought ant killers didn’t actually do the job, which is what led me to experiment and create this natural ant spray to begin with. Thank you for letting me know it worked for you!
Hi! Any idea if this is safe on hardwood floors? Thanks in advance!
If they are sealed, it should be ok, but to be safe, I would definitely spot test on an inconspicuous area first.
Hi. When you say wipe clean, is it with a wet rag or a dry one?
I use a dry rag or paper towel, just to dry the excess liquid.
Thank you so much! It worked almost instantly!
Wonderful! I’m glad to hear that!
Oh my goodness! I made the spray EXACTLY like your video directions! I had no problems with the bottle exploding or anything like that! I sprayed it ONCE between my patio door and living room and the ants are G O N E finito — although it is a little “slimy” so you do need to eventually mop it up. Thanks so much! It works great.
Hi Stacey,
How large, in ounces, was your spray bottle? Is it necessary to put water in solution?
Thanks,
Diane
Hi Diane, I believe my spray bottle is 24 ounces. But you could use something slightly smaller if that’s what you have on hand – just add less water. I do recommend adding some water to dilute (it will leave less residue), but the other ingredients are of course the most important. Hope this helps!