The methods are as follows:

1. It is mainly to protect and utilize natural enemies, and it is also possible to utilize microbial pathogens that are harmless to people and animals but only fatal to rats. The natural enemies of rodents that should be protected include Yellow weasel (weasel), Ai Hu (weasel), mongoose (fragrant mouse), fox, lynx, wild raccoon and domestic cat, and birds include owl with long ears, owl with short ears and owl with longitudinal abdomen. Therefore, attention should be paid to protecting natural enemies.

2. Use poison. It is mainly to make toxic substances enter the body of harmful rats, destroy the normal physiological mechanism of rats and make them die of poisoning. The effect is quick, the use is simple, and it can temporarily reduce the density of rats and control the harm to the minimum when it is widely used to kill rats in a large area.

3. Use instruments to kill rats. It is mostly used in warehouses, barns, field animal surveys, etc. The commonly used instruments are mousetrap, mousetrap, noose, pressure plate, flooding, assassination, etc. The effect of electric current on mice is slow, and it is often used as an auxiliary tool.