一般认为CO_2之所以能灭菌杀虫,乃因为它比空气重,排挤空气中的氧气造成缺氧窒息.但是,在抽气和通CO_2的对比试验中,通CO_2的害虫麻醉死亡速度比抽气缺氧的快72倍;抽气的害虫能保持长时间不死,即使抽气30分钟,虫子依然存活,这就提出一个问题,是缺氧窒息,还是CO_2本身的“杀灭”作用? 为探索CO_2灭菌杀虫的主因,特设计一系列试验.现将试验结果整理报道如下,供参考. 一、材料和方法 CO_2 is generally considered to be able to sterilize insecticides because it is heavier than air and excludes oxygen in the air, resulting in hypoxia and asphyxia. However, compared with CO2, Gas 72 times faster than hypoxia; aspiration of pests can not remain for a long time, even if the exhaust 30 minutes, the worms are still alive, which raises the question of hypoxia asphyxia, or CO 2 itself “kill” effect In order to explore the main cause of CO 2 sterilization and insecticide, a series of experiments have been specially designed, and the test results are reported as follows for reference: I. Materials and Methods