1, washing powder is an efficient agent to trap and kill cockroaches, and its effect is even better than some chemical pesticides. The practice is that the washing powder is scattered in the places where cockroaches may haunt, and it will die after eating the washing powder.

2. Take a portion of borax and flour, and a little sugar, mix them well and make them into balls the size of rice grains, sprinkle them in its haunt, and be poisoned after eating.

3, hot soapy water to kill cockroaches, add a piece of soap to 4 liters of hot water, dissolve it and spray it directly on cockroaches, which can effectively kill cockroaches.

4, soda cockroach removal method, sugar and baking soda powder are mixed in half, and placed in the cockroach infested place. After about 3-14 days, cockroaches will disappear. It is said that this is also the most commonly used secret recipe for cockroaches prevention in the United States.

5, boric acid mopping the floor to prevent cockroaches, after dissolving a proper amount of boric acid with hot water, wipe the floor with a mop or rag. After drying, white boric acid crystals will penetrate into the floor gap, which can prevent cockroaches and ants.