Why Can Fenpropathrin Poison Fish? A Detailed Explanation of the Fish-Poisoning Principle

Fenpropathrin is an insecticide used to control pests and mites of the orders Lepidoptera, Homoptera, Hemiptera, Diptera, Coleoptera and others, but some people use it to poison fish.So what is the principle behind fenpropathrin poisoning fish? How is it used to control pests?

1. What is the principle of fenpropathrin poisoning fish?

Fenpropathrin is a pyrethroid insecticide with contact, stomach and certain repellent effects, and it is toxic to fish. However, everyone should be reminded that using “fenpropathrin” to poison fish is illegal, poses a threat to human and livestock life and health, and in serious cases can lead to a prison sentence.

2. How is fenpropathrin used to control pests?

1. Controlling cotton pests and mites: to control cotton bollworm, at the peak egg-hatching stage, and to control cotton red spider mite, at the adult and nymph mite occurrence stage, use 30-35 ml of 20% emulsifiable concentrate per mu, add 60-80 kg of water, and carry out high-volume spraying.

2. Controlling apple hawthorn red spider mite: at the beginning of the peak mite stage, spray with a 3000-fold dilution of 20% emulsifiable concentrate.

3. Controlling peach fruit moth: when the egg-to-fruit rate is 1%, spray with a 200-3000-fold dilution of 20% emulsifiable concentrate, and spray a second time after 10 days.

4. Controlling cabbage caterpillar and diamondback moth: at the peak of the 2nd-instar larvae, spray 20 ml of 20% emulsifiable concentrate per mu.