Weather in Anfu Dongzhuang

1, the temperature above 35℃ is too much for mosquitoes.

Everyone said that mosquitoes suffered from heatstroke, and we all joked that mosquitoes had entered "summer sleep". In fact, the most suitable temperature for mosquitoes is between 22℃ and 32℃. If the temperature exceeds 35℃ for a long time, mosquitoes will be too much to eat, and they will hide in grass, shade, stairs, civil air defense projects and other places to escape the heat. In addition, too high temperature will lead to less water on the road, and mosquitoes will lack a "hotbed" for spawning.

High temperature above 2.40℃ is quite fatal to mosquitoes.

Several developmental stages of mosquitoes from eggs to larvae to pupae are in the water. They are particularly sensitive to water temperature. It was found that the water temperature 15 ~ 26℃ was the fastest time for mosquitoes to reproduce and develop, which was the favorite temperature for mosquitoes.

When the water body exceeds 35℃, mosquito eggs, larvae and pupae will stop developing and even die in large numbers. When the temperature is above 40℃, the water in outdoor ponds and depressions is constantly evaporating. After exposure, the water temperature is so high that mosquitoes can't lay eggs at all. The survival time of biting female mosquitoes is usually only 28 ~ 35 days. So if it is hot for ten and a half months, mosquitoes will be greatly reduced.

Extended data

Mosquito is a cold-blooded animal, so its metabolic process, life history, longevity and reproductive nutrition cycle are all controlled by environmental temperature. They can't control their own temperature, but at low temperature, they can slow down the metabolic process and survive. The average optimum temperature of most mosquito species is about 25~27 degrees.

At the low temperature of 10 or the high temperature above 40, its development stopped completely and its mortality rate was very high. The respiratory organ of mosquitoes is the tracheal system. Therefore, it is generally particularly sensitive to dryness, so indoor mosquitoes are often concentrated in places with sufficient water, while foreign mosquitoes mostly stay on plants near the ground. Therefore, proper rainfall and sunshine will accelerate the reproduction of exotic mosquitoes.

Therefore, the growth environment, temperature and rainfall of mosquitoes are the main factors affecting their survival.

References:

People's Daily Online-Ningbo CDC: A large number of mosquitoes were killed by heat in Ningbo for half a month.