I understand that having cockroaches in your home is frustrating and you want to get rid of them as quickly as possible. While headlines like “they’ll all die instantly” may seem tempting, it’s important to be realistic with cockroaches: they are masters of survival.

If you’re looking for an effective method without commercial poisons and without having to buy expensive chemicals, there are some proven “grandma’s recipes” that work on a physical level.

🛑 Homemade weapons against cockroaches (without poison)

Baking soda and sugar (deadly mixture)
This is the most classic recipe. Cockroaches love sweets, but baking soda is the best for them.
How to make it: Mix equal parts baking soda and powdered sugar.
Why it works: The sugar attracts them, and the baking soda reacts with the acids and gases present in their bodies after consumption, destroying them internally. Where to use it: Pour it into small bottle caps and place them under the sink, behind the refrigerator, and near the trash can.

Boric acid (white powder)
Although it’s a chemical, in small amounts it’s much less toxic to humans and pets than sprays (but handle it with care).
How to use it: Dissolve boric acid in a little water and sugar or mix it with a little flour.
Why it works: It acts as a stomach poison and also dries out the exoskeleton.

Scented sticky traps (homemade)
If you don’t want to sprinkle anything, create a trap that will trap them.
How to use it: Use double-sided tape or strong glue on a piece of cardboard. Place a piece of onion or banana in the center.
Result: The roach will stick around and never come back.
🌬️ Natural Repellents (to Keep Them From Coming Back)
Cockroaches have an extremely sensitive sense of smell. These products won’t kill them, but they will drive them toward your neighbors:

Bay Leaves: Scatter chopped leaves around your pantry. They hate the smell.
Vinegar: Wash your floors and the inside of your cabinets with vinegar and water.
Peppermint: Spray peppermint essential oil around cracks and it will act as an invisible barrier.
💡 Important Note (Fact)
Cockroaches are very resilient. If you see one during the day, you probably have more in your walls.

Seal Cracks: No matter what you use, if they have a place to crawl (around stairs, in ventilation ducts), they will come back.
Dryness is key: a cockroach can survive for weeks without food, but only a few days without water. Fix dripping faucets!
🥧 Grandma’s tip
If you’re looking for something “physical,” try diatomaceous earth. It’s a fine, natural powder derived from fossils. To us, it’s like flour, but to insects, it’s like microscopic blades that dry them out. Just lightly “sugarize” it where they walk.

Want some advice on how to make a homemade trap with a jam jar that a cockroach can’t escape?