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二斑叶螨（Ｔｅｔｒａｎｙｃｈｕｓｕｒｔｉｃａｅ Ｋｏｃｈ）别名棉红蜘蛛，可危害苹果、葡萄、棉花等多种植物。笔者自１９９８年以来，对二斑叶螨在葡萄上的发生规律、危害特点进行了调查研究，并初步试验总结出了一套较为有效的综合防治方法。 一、形态特征 成螨：体色多变
Two-spotted spider mite (Tetranychusurticae Koch) alias cotton spider mite, can harm apples, grapes, cotton and other plants. Since 1998, the author of the two-spotted spider mites in grapes on the occurrence of the law, the characteristics of hazards were investigated and preliminary experiments concluded a more effective integrated control methods. First, morphological characteristics into mites: body color changeable