Recently, a terrible cockroach appeared in my house. Help!

There are indeed big cockroaches growing in warm and humid places. In Beijing, we usually see Blattella germanica, which is small in size, but high in yield. There is also an American cockroach, which is said to grow to three inches ... = = It's terrible.

In the south, big cockroaches are more common, but in Beijing, I seldom see them. I've only seen them twice in the bathhouse, probably because it's warm and humid.

In order to determine where and why cockroaches gather, a group of scientists designed a whole fake house. There are more than 200 kinds of probes in it, which can monitor the microclimate every 65 milliseconds, wherever possible-behind the door, under the pool and on the roof truss. This house full of wires shows people that nothing can drive away cockroaches like good ventilation. This animal uses an almost imperceptible airflow to sense its mate's chemical signals, but any airflow close to the airflow will quickly dry the cockroach's surface, thus killing it. Therefore, the best way to get rid of cockroaches is to open the kitchen window or install a small electric fan under the closet and sink.

It is estimated that your home is not well ventilated, so open more windows to get some air.