Poisonous mosquitoes are poisonous. Mosquitoes that breed and grow in dark and humid places often take feces and other dirt as their "home", which leads to their own "poisoning" and spreads related diseases to people through bites.

After the arrival of summer, mosquitoes breed, especially in rainy season, and mosquito larvae multiply in flood. Mosquito bites make it difficult for people to fall asleep and spread diseases. When mosquitoes bite, they will secrete an organic acid-formic acid in their mouthparts, and its chemical composition is HCOOH. This substance can cause creatine.

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Blood-sucking habits of mosquitoes: Mosquitoes also spread diseases through blood-sucking. Understanding the blood-sucking habits of mosquitoes can reveal their relationship with diseases. Only female mosquitoes suck blood, and female mosquitoes must suck blood on the ovaries to develop and reproduce. Female mosquitoes begin to suck blood 2 ~ 3 days after emergence, and many factors such as temperature, humidity and light will affect mosquito's blood-sucking activity.

When the temperature is above 10℃, begin to suck blood; Generally, Aedes mosquitoes mostly suck blood during the day, while Anopheles mosquitoes and Culex pipiens mostly suck blood at night. Some prefer human blood, others like to suck the blood of domestic animals, but there is no strict selectivity, so mosquitoes can spread human and animal diseases.

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