二月以后,气候逐渐转暖,蚊子开始活动,逐渐叮人吸血,并产卵繁殖。在华中地区,蚊子大约在二月底便陆续飞出越冬场所,寻找吸血对象。三月份开始产卵,孵出早春第一代蚊子。经过寒冬,大批蚊子冻死,残存的不多了。早春时节,气温偏低,第一代幼虫发育缓慢,成长时间长,而且生活力不强,活动范围小,这都是灭蚊的有利条件。我们应抓住有利时机,打早、打小、打了,把蚊子消灭在萌芽状态。 After February, the climate gets warmer and the mosquitoes begin to move, gradually bite into blood and spawn. In central China, mosquitoes fly out of winter past about the end of February in search of blood-sucking objects. Spawning begins in March, hatching the first generation of mosquitoes in early spring. After winter, a large number of mosquito frozen to death, survived much. Early spring season, the temperature is low, the first-generation larvae develop slowly, grow a long time, but less viable, the scope of activities is small, which are favorable conditions for mosquito control. We should seize the favorable opportunity to fight early, fight small and fight and eliminate the mosquitoes in the bud.