柑桔红蜘蛛(Panonychus citri)是柑桔最猖獗、危害期最长的害虫,世界上生产柑桔的国家都认为它是柑桔类害虫中最难防治的虫害。这种害螨对药剂容易产生抗性,起初被认为防治效果最好的杀螨剂,只要连续使用,就逐渐产生抗性,而至无效。1976年我省开始推广使用的三氯杀螨醇,杀伤红蜘蛛效果极好,但连续使用5年后,全省各地都发生不同程 Citrus spider (Panonychus citri) is the most rampant citrus pests, the longest period of pests, citrus countries in the world think it is the most pest control citrus pests. This pest mites susceptible to agents, initially considered the best miticide control effect, as long as continuous use, they gradually produce resistance, and to no effect. In 1976, the province began to promote the use of dicofol, killing spider mites very good, but after 5 years of continuous use, the province has occurred in different places all over the process