What Can I Put On My Lawn To Kill Ants?

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What can I put on my lawn to kill ants? Ant mounds are the one thing that keeps a lawn from being picture-perfect. Ants play a critical part in our ecology. They aerate the soil, pollinate seeds, and eat pests such as termites and ticks.

However, ants may quickly take over areas of your lawn, and if you have dogs or children, you’ll want to know how to get rid of ants in the grass naturally.

There are natural methods to getting rid of ants that do not endanger pets or children. You may already have some of the components on hand.

This essay will discuss some natural and chemical ant-removal methods for your grass. Let’s get this party started!

What Can I Put On My Lawn To Kill Ants?

Ants are not considered dangerous pests in general, but they can cause severe health and cosmetic damage to turfgrass. Controlling ants in the lawn becomes necessary when their hill formation causes root damage to grass and ugly mounds.

what can i put on my lawn to kill ants

These colony insects congregate in vast numbers and construct elaborate labyrinths within grassroots. Anthills in the grass may harm foot traffic and mower blades.

Understanding how to control ants in lawns begins with understanding these insects’ soil and location preferences, as well as a deliberate effort to demolish their nests.

What effects do ants have on your Lawn?

Many ants make their nests in or beneath lawns. They prefer well-drained soil in properties that are not compacted. This implies that even the most well-kept grounds might get infested with ants.

Ants on tree in lawn

They aren’t all horrible, however. They prey on other insects in your grass, and their nests can aid in lawn aeration.

However, they leave it on the lawn’s surface to extract the dirt. These ant mounds can harm your yard in a variety of ways.

  1. They have the potential to make your lawn uneven.
  2. Make mowing the grass tough because the lawnmower blades become trapped on dirt lumps.
  3. Kill the grass beneath the earthen mounds, especially if it is short.

They also eat away the grass’s root zone as they grow their colonies. As a result, areas of dead grass may occur.

Ant Hills And Lawn Maintenance

  • Ant colonies’ mounds and hills aren’t the only concerns with these exciting creatures. Many species are interested in ranching and will “farm” aphids and mealybugs, protecting and aiding them with their daily needs to maintain a local source of honeydew. 
  • Honeydew is a fluid generated by aphids and mealybugs that ants consider a delicacy. A colony of agricultural ants can cause havoc on your vegetables and decorative plants, as they are the preferred food of mealybugs and aphids. Controlling ants in the lawn is an effective method of reducing the population of these troublesome insects.
  • Ants prefer undisturbed, low-traffic areas with dry, well-drained soil. Lawn ants are usually not a problem because they do not sting, but some species have a habit of weakening grass roots, resulting in extensive dead areas in the lawn. 
  • Another issue is ant mounds in the grass, which may grow to be quite massive and offer a tripping hazard, and make mowing difficult. Raking will be routine maintenance for lawn care and ant hills in low population areas. Simply raking the hills will disperse the population and prevent solidified mounds from forming. This easy technique is successful from fall to summer if done every week.

Getting rid of Ants in Your Lawn

Ant mounds in grass


It may seem simple to cast off ants in your backyard, but make sure you aren’t also taking rid of your grass! Many ant-killing pesticides can harm your grass, causing yet another yard issue. Home treatments for ants might help you get rid of the infestation without destroying your lawn. 

Soapy water: A traditional, natural ant-repelling approach is soap and water. Soapy water can be made using a variety of methods. Apple cider vinegar, baking soda, and peppermint oil are all mentioned in several recipes. You are free to investigate the advantages of these components.

Soapy water

However, environmentally friendly soap and tap water will suffice. One heaping spoonful of soap to 1 quart of water equals 2% pesticide spray. Pour the liquid into a spray bottle after you’ve combined the ingredients.

Spritz the soapy water liberally on any visible ant trails, plants, or the ant colony itself. The solution weakens ants’ natural water resistance. As a result, ants are killed by the liquid.

Vinegar (White): Spray ant-infested regions with a solution of equal parts white vinegar and water. Ants’ bodies are unable to endure the acidity. As a result, the acid in vinegar kills ants. Pouring the fluid inside the anthill is another option.

Vinegar is a harmless approach to get rid of ants, but it may destroy flora in the process. Because the acidity can harm your plants’ topsoil, use this procedure with caution.


Diatomaceous earth should be spread all over: This gardener’s favorite is created from algae fossils and is a natural pesticide. Ants consume the diatomaceous world, which dehydrates them from within and eventually kills any ant that devours it.

Diatomaceous earth

It’s an excellent approach to kill an ant mound from the inside out because the ants will survive long enough to return to the nest with the diatomaceous earth. Buy only food-grade diatomaceous earth–diatomaceous earth used in pools or other chemical systems has an entirely different chemical composition.

Baby powder: Ants breathe using spiracles, or pores in their exoskeleton. Ants’ spiracles become clogged due to the tiny particles of baby powder. It deprives ants of oxygen once obstructed by fine powder. Homeowners can remove ants in their lawn by spreading the baby powder in areas where ants are present.

Baby powder

Baking soda may be used in the vicinity of child powder. Suppose you don’t have any. You can get any option the next time you go shopping.

Salt: Salt, a common pantry ingredient, is used to repel ants. The ant’s exoskeleton dehydrates because salt is a desiccant. Dehydration kills the ants as a result.


Homeowners can spray ant trails with a potent mixture of salt and water or pour it into ant holes. Avoid sprinkling your saltwater solution in huge quantities. Excessive salt water can destroy plants and vegetation.


Spray that kills ants quickly:

This is usually used at the first level when you first discover the ants and want to take them away. While not intended for direct application to your grass, the ant killer spray effectively kills ants in and around the house.

I wouldn’t waste your time spraying ants all over your garden when there are other options. Use only in and around your home.

Ant killer spray

Stations for Ant Baiting:

The final stage entails killing ants and nests that you have missed – which you will very certainly do. The ant bait stations are intended to be placed near and around the nest so that the ants can feed on the liquid inside and return it to their nest.

The active substance spreads throughout the nest, killing the entire colony. I buy 6-8 of them (depending on the size of my garden) and place the bait stations in and around my lawn (and with many more throughout the park) to kill off any ants before the colony can re-establish itself.

If a settlement does form on the odd chance, I’ll return to step two and reapply the granules.

Granules for ant control:

It’s time to go after the colony once you’ve killed all the ants in and around your house. There are two methods for using ant killer granules to kill ants: 

  • When in contact: Diluted in water and poured over the ants and ant nest.
  • Ingestion: You sprinkle the granules on and around the nest for them to consume and return to the nest. 

If you know where the nest is, apply both procedures described above.

Please keep in mind that this isn’t a quick fix. It is intended for the ants to take the ‘meal’ back to the nest, destroying the colony.

Some disadvantages of these methods: 

  • If possible, try to stay away from chemicals. Insecticides aren’t the most effective technique to eliminate entire ant mounds unless they’re professional-grade and applied correctly. 
  • Chemicals will also quickly damage your vegetation.
  • Use cold water instead of hot. Another popular alternative that will undoubtedly contribute to the loss of grass.
  • Use of vinegar is not recommended. Acetic acid has the potential to dry out your lawn’s top layer.
  • During the day, don’t use soap or water. When you water your lawn throughout the day, you’re essentially amplifying the sun’s impact on your grass, producing burns and degeneration. The water should be gone if the sun is shining!


Despite having shown you how to kill ants, they can be a nuisance, and you’ll never be able to clear your garden of them entirely. That being said, managing their numbers is relatively easy with the appropriate strategy, and you’ll witness a significant reduction in their numbers.

While ants serve a crucial function in the ecosystem of your lawn, they can be a nuisance. Especially if you have ant mounds in your yard or the tiny pests consume your vegetation.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.