Which pesticide works better for poisoning fish

When catching fish, many farmers use special chemicals to poison or stun fish, so which pesticide is used to poison fish?

1. Which pesticide is used to poison fish?

Pesticides such as rotenone extract and fenpropathrin are used to poison fish. These pesticides are toxic only to fish and harmless to humans. Rotenone extract is one commonly found in daily life, obtained by finely grinding and extracting the roots of plants in the genera Derris and Millettia, and its main component is rotenone. It has strong insecticidal power and is used in agriculture to control many pests of cotton, fruit trees, vegetables, tobacco, mulberry and tea trees.

2. How does rotenone extract poison fish?

Derris root is a covert fish-catching tool, and using it to catch fish by rivers outdoors is very effective. Derris root contains a substance called “rotenone”. Rotenone is highly toxic to insects and fish, yet only mildly toxic to mammals, so fish stunned by derris are basically no risk to the body. In agriculture, derris root can also be used to control pests such as red spider mites, red spider mites, whiteflies, leafhoppers, lace bugs, whiteflies and silver-marked noctuid moths, while also promoting crop cultivation. It is an environmentally friendly pesticide.

3. What are the effects of derris root?

The main effects of derris root are: detoxifying and killing insects, mainly for sore toxin, dermatitis, skin eczema, bruises and swelling, and joint pain. For external use, boil an appropriate amount in water to wash, or apply as a poultice. But it must not be taken orally, because a person taking derris root will experience paroxysmal abdominal pain, nausea, vomiting, paroxysmal spasms, muscle trembling and slowed breathing, and death from paralysis of the respiratory center, causing great harm to the human body.