Can Boric Acid Kill Ants?

Can Boric Acid Kill Insects Safely And Inexpensively? Country


Ants are tiny creatures that can be a nuisance when they invade your home. They can contaminate your food, damage your property, and even cause electrical problems. Boric acid is a common household product that has been used for decades to control pests, including ants. But does it really work? In this article, we will explore whether boric acid can kill ants and how to use it effectively.

What is Boric Acid?

Boric acid is a white, odorless powder that is derived from boron, a mineral that is found in rocks, soil, and water. It has antiseptic and antifungal properties and is commonly used in many household products, including insecticides, cleaning agents, and laundry detergents.

How Does Boric Acid Kill Ants?

Boric acid is toxic to ants when ingested. When ants come into contact with boric acid, it sticks to their bodies and legs. As they groom themselves, they ingest the boric acid, which damages their digestive system and eventually kills them. Boric acid also acts as a desiccant, which means it dries out the ants’ exoskeletons and dehydrates them.

How to Use Boric Acid to Kill Ants

To use boric acid to kill ants, you will need to make a bait. Mix one part boric acid with three parts sugar or honey and add enough water to make a syrupy consistency. Place the bait in areas where ants are known to travel, such as along baseboards, under sinks, and near windows and doors.

Important Safety Tips

Boric acid is toxic to humans and pets if ingested in large amounts. Always wear gloves and a mask when handling boric acid and keep it away from children and pets. If you have pets, consider using bait stations to prevent them from ingesting the bait.

How Long Does It Take for Boric Acid to Kill Ants?

Boric acid can take a few days to a week to kill ants, depending on the size of the colony and how much bait they consume. It’s important to be patient and allow the ants to carry the bait back to the nest, where it will kill the queen and the rest of the colony.

Other Ways to Control Ants

In addition to using boric acid, there are other ways to control ants. Keep your home clean and free of food crumbs and spills. Seal cracks and gaps where ants can enter your home. Use natural repellents such as peppermint oil, vinegar, and citrus peels. You can also use ant baits or sprays that contain natural ingredients instead of harsh chemicals.


In conclusion, boric acid can be an effective way to control ants when used properly. It works by poisoning the ants’ digestive system and dehydrating their exoskeletons. However, it’s important to use boric acid safely and to be patient as it can take time to kill the entire colony. If you prefer a natural approach, there are other ways to control ants that are safe and eco-friendly.