rats on the ceiling can be smoked with thick smoke and used in conjunction with the rat trap!

1. Keeping the environment at home is the most basic method. Rats like dirty environment best, so keeping the environment is the most basic method.

2. Use rat poison. This method is absolutely effective for rats, and it will kill them all, but it is not clear where they die. This is a bit troublesome, but it can really kill rats effectively.

3. Ask a professional rat killer to go home and help you clean up the rats. They are professional and can basically kill half of the rats in your house for a little money.

4. This method is to catch a live mouse, then turn on the recording, torture the mouse and record the mouse's cry. The purpose of this method is that the mouse will send out a dangerous signal and remind its companions. This can also achieve the effect of preventing rats.

5. The mouse cage and the sticker sticking to the mouse are feasible.