20 Safe Ways to Kill Ants in Your Home Without Toxic Chemicals – Healthline
Some common household products may help you get rid of ants, such as white vinegar, Borax, essential oils, and coffee grounds. That said, certain items may not be safe to use around pets or children.
According to the National Wildlife Federation, there are more than 12,000 species of ants around the world. The vast majority of these ants are harmless to people.
That said, ants may carry bacteria, making them potential transmitters of disease or infection. For example, a
Keep reading to learn about how to kill and repel ants safely.
Here are some of the best ways to kill and repel ants naturally using ingredients found in the home or at a local store.
Borax, or sodium tetraborate, is a powdery white substance. It’s often used as a cleaning product, emulsifier, or insect repellant.
To use borax, follow these steps:
It’s imperative to keep borax away from pets and children as it may be harmful.
Diatomaceous earth is made up of silica. It’s made of fossilized remains of aquatic organisms called diatoms, a type of plankton.
Diatomaceous earth isn’t a poison. It kills ants and other bugs by
To use it to kill ants, follow package directions, or sprinkle the powder anywhere you see ants.
Ants leave a
Using glass cleaner may help remove the scent and deter the ants from reentering your home.
Here’s how to do it:
If you don’t have glass cleaner available, using soapy water of any kind (i.e., hand soap, dish detergent) may likely remove the scent of ant pheromones.
Black or red (cayenne) pepper is a natural ant deterrent, as the insects may find the smell irritating.
Sprinkle pepper around baseboards and behind appliances.
The authors of a 2020 study found that peppermint oil helped repel the invasive European red ant, Myrmica rubra (L.).
To use peppermint essential oil as an ant deterrent, complete the following steps:
Keep peppermint oil out of reach of pets, especially cats, which can become very ill if exposed.
You may be able to find peppermint oils at your local grocery chain or health food store.
Tea tree oil has been shown to
To use this method, complete the following steps:
If the scent is too strong, try making a mixture of tea tree oil, peppermint oil, and water.
Like most essential oils, keep tea tree oil out of reach of pets.
You can purchase tea tree oil at your local grocery store, health food store, or online.
Oil extracted from the lemon eucalyptus tree is another natural insect repellent. It contains citronella, which is used in candles to repel mosquitoes and has been shown to
To use, complete the following steps:
Do not ingest lemon eucalyptus oil and keep it out of reach of children and pets.
You can likely find lemon eucalyptus oil at your local health food store.
Despite their similar names, the oil of lemon eucalyptus (OLE) is different from lemon eucalyptus essential oil. OLE comes from the gum eucalyptus tree, which is native to Australia. It contains a chemical called p- Menthane-3,8-diol (PMD), which is an effective insect repellent.
PMD is classified as a biopesticide by the Environmental Protection Agency (EPA) and is considered safe to use.
You can find OLE at your local hardware and gardening store or online.
White vinegar, available at all grocery stores, is a cheap and effective way to kill and repel ants. It’s also a natural cleaning agent.
Try using a 1-to-1 vinegar and water mixture to clean hard surfaces, including floors and countertops, wherever ants are likely to travel. If you see ants, spray the mixture on them or wipe them up with a paper towel.
Ants can smell the vinegar after it dries, but the scent doesn’t remain long for most people.
If you notice ant holes near your home, pour boiling water into them. This method will
The boiling water won’t be enough to kill off the entire colony. For this reason, make sure to treat every ant hole you see within your home’s proximity.
Cornstarch, available at grocery stores, can be an effective way to smother many ants at one time.
There are two different ways to employ cornstarch to kill ants:
A 2008 study found that compounds in cinnamon leaf essential oil, including trans-cinnamaldehyde, could be effective at killing and repelling ants.
Keep cinnamon leaf essential oil out of reach of pets.
Health food stores often carry cinnamon leaf essential oil. You can also find it online.
Neem oil is a naturally occurring insecticide extracted from the neem tree, native to India.
According to the National Pesticide Information Center, neem oil helps:
It’s best to use neem oil around plants, especially where you see aphids or ants. Ants farm aphids (small sap-sucking insects), so poisoning the aphids with neem oil can take care of both types of pests.
Diluted neem and products containing neem extract have been reported to not work nearly as well as full-strength neem oil.
You can find neem oil at many health food stores or online.
Brewed coffee grounds have been found to repel household ants.
Try sprinkling the freshly brewed coffee grounds on disposable surfaces (such as index cards) and leaving them in areas where ants congregate, such as pet bowls.
You can also place the grounds on windowsills. The grounds may lose their potency once they’re dry, so make sure to change often.
Boric acid is a type of poison that can kill certain types of worker ants, according to a 2023 animal study.
To use boric acid, follow the steps below:
You can also use boric acid as an ingredient in do-it-yourself (DIY) ant traps. Mix the powder with something sweet that will attract ants, such as maple syrup or corn syrup. Spread on a flat, disposable surface like cardboard and place in areas where you see ants.
It’s vital to keep boric acid away from pets and children as it can be hazardous.
Find boric acid at your local hardware and gardening store or online.
You can spray or wipe lemon juice to detract ants by removing pheromone trails and masking the scent of food.
In addition, putting lemon rinds in your cupboard may also detract ants from taking up residence in your kitchen.
Check your houseplants for swarms of ants, which might indicate nests underneath the soil. Discard any plants that appear to be infested.
To stop ants from making homes in your plants, surround the soil with citrus rinds from lemons or oranges.
Keep your yard clean of debris. Cut off any vines or vegetation that touches or leans onto the exterior walls of your house and windows that can make it easier for ants to enter your home.
Ants are attracted to sweet and starchy foods like sugar, honey, and cornmeal. Therefore, one of the best ways to deter ants is to ensure that no food sources are readily available for them to eat.
Keep food tightly sealed in containers or plastic bags. Wash all plates and cooking utensils immediately after eating.
Clean up crumbs from your home every day using a broom or vacuum. Places that may accumulate crumbs include:
Pet food can also attract ants. Remove pet bowls as soon as your pet has finished eating. Clean the bowls immediately to eliminate the scent of the food.
Figuring out how ants are entering your home can help you eliminate an ant infestation and prevent a future one.
Check your home for cracks in the walls and holes near floorboards and radiators. You can seal cracks or treat them with ant repellent. Also, check for rips in window screens that require mending.
The kitchen offers proximity to an ample supply of food. This makes it the place that most often attracts ants and other pests. To discourage ants from being in the kitchen:
If natural options aren’t enough, you can use pesticides and commercially prepared products to eradicate ants.
Nontoxic commercial repellant sprays may help repel and kill ants.
For example, Raid is a chemical spray that can be very effective on ants. It’s long-lasting, but it contains imiprothrin and cypermethrin, two chemical compounds that shouldn’t be inhaled or ingested.
Bait traps that contain pesticides in an enclosed form may be preferable for some people over sprays. Bait traps work by attracting ants to them. The ants eat the bait and bring some of it back to their nests, killing off other ants.
Some bait traps contain boric acid or borax, while others contain hydramethylnon. This is a dangerous chemical compound for children, pets, and growing food like tomato plants.
You can find ant traps at many hardware and gardening stores and online. If you’re avoiding toxins, check the ingredients before you buy.
If all else fails, hiring an exterminator can help. Look for one who’s committed to using the least toxic products possible. Let them know if you have children, pets, or other concerns, such as a respiratory health condition.
Some professional exterminators use green, organic, or eco-friendly words in their titles. If you’re concerned about chemicals, ask the exterminator what substances they typically use in ant treatments before you hire them.
Some natural ways to permanently get rid of ants include using water-based mixtures that contain borax and Diatomaceous earth, or pouring boiling water into ant holes. If natural remedies don’t help, speak with an exterminator. They’ll be able to offer you advice.
It’s important to seal any cracks in your house where ants may be entering. You can use natural remedies like cornstarch to quickly eradicate large amounts of ants, or try cleaning ant pheromone trails with liquid detergent. If these fail, try using bait traps or commercial repellants.
Ants may not like the smell of:
Ants are common invaders of homes across the United States and are mostly harmless. They can be hard to get rid of, but it’s possible to repel and eradicate ants over time using the natural methods described above. Commercial products are also available to help kill or detract these pests.
Keeping your home clean and removing possible places for ants to enter and hide can prevent future infestations.
If all else fails, professional exterminators can remove ants from your home.
Last medically reviewed on December 20, 2021
Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available.
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