2. Boric Acid and Flour Paste
Boric acid is a well-known, highly effective insecticide that can kill roaches by targeting their nervous system. When combined with flour, it creates a sticky paste that roaches will eat and carry back to their nests.
Ingredients:
- 2 tablespoons boric acid
- 2 tablespoons flour
- Water (enough to make a thick paste)
Instructions:
- Combine the boric acid and flour in a bowl.
- Slowly add water to form a thick paste.
- Roll the paste into small balls and place them in areas where roaches are frequently seen.
Why it works: Boric acid disrupts the roaches’ nervous system, killing them after they ingest the bait. The flour acts as an attractant, ensuring they consume the mixture.
