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在我国林业生产上,特别是杨树(Populus spp.)栽培中,受到天牛的严重危害,至今尚无经济有效、简单易行的防治方法。为此在系统研究冰核细菌的基础上,探索利用冰核细菌作为促冻杀虫剂,为控制天牛危害提出一项新的措施。研究表明,多数害虫是不耐结冰的,一但体内水分结冰,细胞组织就会受到破坏而导致死亡;一些耐寒昆虫的耐寒性也只是在一定时间内具有,当体内结冰持续时间较长,也会使之死亡。但是一般昆虫都能忍受-10～-15℃的低温而不结冰,这是因为昆虫具有过冷却能力,
In China’s forestry production, especially populus (Populus spp.) Cultivation, by the serious damage of the celastrus, so far there is no cost-effective, easy to control methods. Therefore, based on the systematic study of ice-nucleation bacteria, this paper explores the use of ice-nucleation bacteria as a freeze-thaw insecticide and proposes a new measure to control the damage of the beetles. Studies have shown that most pests are not resistant to freezing, but the body of water ice, cell tissue will be destroyed and cause death; cold tolerance of some cold-resistant insects also only have a certain period of time, when the body icing longer than Long, it will make it dead. But generally insects can tolerate -10 ~ -15 ℃ low temperature without freezing, it is because insects have the ability to over-cooling,