1. In the sewer filled with boiling water, will be parasitic in the cockroaches inside the dead, and cover the water seal.
2. Cockroaches are afraid of the taste of cucumber, one or two pieces of broken cucumber on where they often come and go.
3. Find an empty glass bottle to do the trap, the onion, flour, boric acid and together, and then hand it into a diameter of about 1 cm of the ball, soaked in milk for 2 to 3 hours, into the bottle The The bottle with a soft and hard enough to cover the paper, with a leather tie, the middle of a small hole, cockroach smell from it, it is easy to fall into the bottom of the bottle.
Finally, should try to keep the room clean, dry, no water, especially in the kitchen and bathroom. You can also try to use our store's anthelmintics!