Dealing with cockroaches and ants in the home can be more than just a nuisance — it can affect your comfort, hygiene, and overall sense of well-being. These unwelcome visitors are known for infiltrating kitchens, pantries, bathrooms, and other living spaces, often drawn by warmth, moisture, and accessible food. While many people turn to chemical insecticides, there’s growing interest in gentler, budget-friendly home solutions — including one simple yet surprising tool: toothpaste.
Although toothpaste is best known for maintaining oral hygiene, some homeowners have found that certain ingredients in it may help discourage ants and cockroaches from invading their homes. This guide explores how you can use toothpaste — paired with other common kitchen items — as part of a non-toxic strategy to help deter pests in a natural and cost-effective way.
Why Cockroaches and Ants Invade Homes
Before diving into the solution, it helps to understand what attracts these pests. Cockroaches are especially drawn to dark, humid environments with easy access to food and water. Crumbs on the floor, leaks under the sink, or pet food left overnight can all become a feast for these resilient insects.
Similarly, ants typically enter homes in search of food, particularly sugary substances. Once they locate a source, they leave a pheromone trail for others to follow, which is why you may see long ant trails appear suddenly.
The Toothpaste Trick: What Makes It Work
The so-called “toothpaste trick” relies on the idea that certain ingredients found in common toothpaste varieties — particularly mint (menthol) and, in some cases, mild abrasives — may disrupt the scent trails that ants use to navigate and deter cockroaches through their strong odor.
While most commercial toothpaste does not contain boric acid, which is a well-known pest control agent, the mint scent can still serve as a natural deterrent. Ants rely heavily on scent communication, and cockroaches tend to avoid strong smells they aren’t accustomed to.
The method involves using a homemade paste or bait ball made with toothpaste and household ingredients to discourage pests from returning to key areas of the home.
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How to Make a DIY Toothpaste Pest Deterrent
This easy-to-make mixture combines a few pantry staples and is safe for households with children and pets (when used correctly and kept out of reach). The idea is to attract the insects using sugar, while the scent of the toothpaste masks or disrupts their ability to communicate or locate food.
Ingredients:
3 tablespoons of sugar (to attract the pests)
4 tablespoons of flour (acts as a binder)
3 tablespoons of regular toothpaste (preferably mint-flavored)
3 tablespoons of water
Instructions:
In a small mixing bowl, combine the sugar, flour, and toothpaste.
Gradually add water while stirring until you create a thick, uniform dough.
Shape the dough into small balls — approximately the size of a walnut.
Place these balls in areas where ants or cockroaches are commonly seen, such as:
Behind kitchen appliances
Under the sink
Near baseboards
Along windowsills or entry points
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