1, sugar+baking soda: mix white sugar and baking soda according to the ratio of 1: 1 and scatter it in places frequented by cockroaches. The sweetness of white sugar will attract cockroaches, and baking soda mixed in it can kill cockroaches.

2, mashed potatoes+boric acid: Starch food is also a kind of food for cockroaches. Adding boric acid into mashed potatoes and putting them in places where cockroaches often haunt can also kill cockroaches.

3, sugar and washing powder mixed, sprinkled in places frequented by cockroaches, can also kill cockroaches. In addition to the sweetness of sugar, the smell of washing powder is also attractive to cockroaches, but cockroaches will be poisoned if they eat washing powder.

4. Peppermint: Peppermint is a common spice, and cockroaches hate its fragrance. So keeping a mint at home, or grinding dried mint into powder and scattering it in places frequented by cockroaches, can also play a good role in driving away cockroaches.