What is this bug and how to kill it?

This is an insect called cockroach, which is one of the common indoor pests.

The following are some common disinfection methods:

1. Use pesticides: you can use pesticides sold in the market to kill insects. Choose the right insecticide and use it according to the instructions. Pay attention to safety when using pesticides, and avoid contact with skin and inhalation of gas.

2. Clean up the living environment: keep the room clean and dry, clean up indoor sundries and garbage, remove indoor honey plants and weeds, and reduce the food sources and habitats of cockroaches.

3. Install window screening and adhesive tape: Installing window screening with more meshes at windows and doorways can effectively prevent insects from flying into the home. At the same time, gaps and caves can be blocked with adhesive tape to reduce the entry of insects.

4. Use ultrasonic pest control instruments: There are some ultrasonic pest control instruments on the market that can emit ultrasonic waves to drive away insects. However, this method is not a permanent cure, and it needs to be used in conjunction with other methods.

According to the actual situation, choose the appropriate disinfection method and pay attention to safe use. If you can't handle it yourself, it is recommended to seek professional help.