随着全球气温的变暖,害螨的发生与为害也越来越严重,1ａ内发生代数多,种群繁殖、扩散能力强,如果不能及时控制,能在短时间内把一大片好的果园变成荒野。近几年很多重要果树产区的害螨都不同程度地产生了抗药性,特别是北方苹果、梨树产区隐蔽性强、抗性高的二斑叶螨(白蜘蛛... With the global warming, the occurrence and damage of pest mites are also more and more serious. There are many algebra in population 1a, the breeding of population and the ability to spread are strong. If it can not be controlled in time, a large orchard can be changed in a short time Into the wild. In recent years, many important pest producing areas of fruit trees have varying degrees of resistance, especially in the northern apple, pear hiding strong, high resistance two-spotted spider mite (white spider ...