1, chloroform: chloroform is a common drug that can be absorbed through the skin or into the respiratory tract and lead to poisoning and death. As it is harmful to human body and environment, it needs to be used with caution and under the guidance of professionals.

2. Capture: Compared with the direct use of drugs, capturing frogs is a gentler and more humane method. You can use professional catching apparatus or catch by hand. After capturing, the frogs can be released to appropriate places or handed over to the relevant authorities for disposal.

3. Frogs have an important role in the ecosystem, controlling the number of insects and other small animals, as well as being important food for certain species. Therefore, we should not take the behavior of over extermination. In addition, in many countries and regions, it is illegal to fight or destroy frogs.