Sometimes you have to use their own greed against them. Ant baits are little takeout containers with poisoned sugar. The ants will bring the “free lunch” back to their nest, and the whole colony gets a collective stomachache.
Place baits near ant trails, but far from pet bowls. It’s a slow poison, so be patient. You might see more ants for a day or two—they’re just having a final feast. Eventually, the queen gets the memo and the party wraps up.
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If you’re a DIY hero, you can mix borax with sugar water (one part borax to three parts sugar). It tastes sweet but wreaks havoc on their digestion. Basically, you’re serving them a killer dessert—literally.