1、Insect based biological control

1.Dragonflies: Dragonflies are natural enemies and feed on mosquitoes and flies. The number of dragonflies can be increased through afforestation, planting aquatic plants, and other methods.

2. Mosquito fly mud moth: Mosquito fly mud moth is a natural enemy that feeds on the eggs, larvae, and adults of mosquitoes and flies. Biological control can be achieved by purchasing mosquito, fly, and mud moth larvae for release.

2、Plant based biological control

1. Tequila: Tequila can effectively produce volatile organic compounds and has a good repellent effect on mosquitoes and flies.

2. Melia azedarach: Melia azedarach leaves and roots can extract Melia azedarach acid, which has a good insecticidal effect on pests such as mosquitoes and flies.

3、Microbial based biological control

1. Insect biologics: can be added to places such as water pools as a measure of microbial control.

2. Bacteria such as Bacillus have good insecticidal effects on mosquito and fly larvae. Insecticides can be added to water bodies for prevention and control.

4、Practical suggestions

1. Cleaning up stagnant water: The growth and reproduction of mosquitoes and flies require a water environment, and places with stagnant water such as ladders, flower pots, and air conditioners should be cleaned up in a timely manner.

2. Installing protective nets: Installing protective nets in windows, doorways, and other places can prevent mosquitoes and flies from entering the room.

3. Cleaning and hygiene: Keeping the residence and surrounding environment clean and tidy can effectively reduce the breeding of mosquitoes and flies.

In summary, there are many biological control methods for mosquitoes and flies, and using different control measures can achieve better results. At the same time, it is important to pay attention to cleanliness and hygiene in daily life, and reduce the breeding of mosquitoes and flies.