柑桔六点黄裂爪叶螨Schizotetranychus sexmacu-latus(Riley)是宜昌地区的一种重耍柑桔害虫。尤以西陵峡内沿江的甜橙主耍产区为最严重,一般年份,被害株率都在90％左右,是甜橙非正常落叶的重要原因。 柑桔六点黄裂爪叶螨主要危害叶片和绿色枝条,次为花蕾和果实。造成落叶、落果、枯梢,常导致产量 Schizotetranychus sexmacu-latus (Riley) is an important citrus pest in Yichang. Especially in Xiling Gorge, the main producing area of ​​sweet orange is the most serious. In general years, the rate of victim plants is about 90%, which is an important reason for abnormal orange deciduous leaves. Citrus six-point yellow spider mite main hazards leaves and green branches, followed by buds and fruits. Cause leaves, fruit drop, shoot, often lead to yield