所谓休眠期喷药,就是在植物休眠期和无叶期,而不是在生长旺盛期对植株的喷药,休眠期喷药是很有效的,因为它可将那些正在越冬的害虫和病原体在它们有机会进行繁殖和危害植株生长之前就把它们杀灭。一般地说来,休眠期喷药主要对介壳虫、螨、粉蚧以及许多种类的虫卵和冬眠毛虫等最有效.主要通过喷药,使药物对虫呼吸道的渗透或窒息而将害虫置于死地。对于虫卵,药物则渗过卵壳而产生气体之交换来破坏它. The so-called dormant period spraying, is in the plant dormancy and leaf-free period, rather than in the vigorous growth of the plant spraying, dormancy spraying is very effective because it can those who are overwintering pests and pathogens in them Kill them before they have the opportunity to reproduce and endanger the growth of plants. In general, the dormant period of spraying the main scale insects, mites, mealybugs and many types of eggs and hibernating caterpillars, etc. Mostly by spraying, so that drugs on the respiratory tract of insects infiltration or suffocation and the pests Dead. For eggs, the drug permeates the egg shell and creates an exchange of gas that destroys it.