Baking soda vs. ants: does the kitchen staple really work?

Are you waging a war against an unwelcome houseguest? Baking soda has long been touted as a natural ant deterrent, but does it actually deliver? Experts say the answer is complicated. While a common pantry item, its effectiveness hinges on a crucial detail: ants have to eat it.

The baking soda hype: does it actually kill ants?

For years, the internet has buzzed with claims about using baking soda to eliminate ant infestations. But is this low-cost solution the eco-friendly answer to a common household problem? The truth, according to pest control experts, is a bit more nuanced.

“Baking soda is not the most effective remedy for ants,” explains Nicole Carpenter, president of Black Pest Prevention. The chemical reaction within the ant’s system is key. The ants must consume the baking soda to trigger a reaction that generates carbon dioxide, effectively eliminating them.

Alone, baking soda isn't particularly appealing to ants, who are drawn to sweeter substances. However, combining it with other ingredients significantly boosts its effectiveness. A mixture of one part baking soda with one part powdered sugar creates a more enticing bait.

Powering up the solution: baking soda with boric acid

For a stronger punch, experts suggest adding boric acid to the mix. Boric acid is highly toxic to ants, making the solution far more potent. However, caution is advised, as boric acid can be harmful to humans and pets. A common ratio is equal parts baking soda, boric acid, and powdered sugar.

Beyond the classic baking soda and sugar combination, other natural deterrents are available. Diatomaceous earth, a powder made from fossilized algae, is effective because it damages the ants' exoskeletons. Talcum powder works similarly.

When to call in the professionals

If DIY solutions fail, it's time to consult a professional. Garrett Thrasher, co-owner & general manager at Thrasher Termite & Pest Control of So. Cal, recommends seeking environmentally friendly options and requesting information on the products they intend to use, specifically asking for the Safety Data Sheet.

The effectiveness of baking soda as an ant killer isn't a simple yes or no. It requires understanding ant behavior and combining it with strategic application. While it may not be a complete solution, it can be a helpful component in a comprehensive pest control strategy.

Ultimately, a proactive approach—and a willingness to adapt—is the best defense against those persistent little invaders.