我们于1994年春、秋季节对安义县园艺场柑桔园柑桔叶面几种主要螨类的种群结构与分布状况作了调查研究，现将结果报告如下。1研究方法定点调查了安义公园艺场约66667m的温州蜜桔园。在桔园的东面南北中5个方位随机挑选5棵树。然后在每棵树的树冠各方位随机摘取树叶，并按卷叶、 In the spring and autumn of 1994, we conducted a survey on the population structure and distribution of several major mites on citrus orchards in Citrus Orchard of Anyi Horticultural Field, and the results are reported as follows. 1 Research Methods We surveyed Wenzhou Orange Garden, which is about 66,667m in Anyi Gongyuan Art Market. Five orange trees were randomly selected in five orientations in the east, north, south of the orangery. Then in each tree canopy crown randomly picked leaves, and according to the leaf,