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棉叶螨的发生与防治技术研究王文夕李巧丝（河南省农科院植保所，郑州４５０００２）棉叶螨在我国南北各棉区均有分布，为害棉花的主要有朱砂叶螨、截形叶螨。一般年份棉花减产２０～３０％，严重年份可致绝收。１形态特征与危害症状成螨雌螨体长０４２～０５２ｍｍ，...
Occurrence and control techniques of cotton spider mites WANG Wen-xi LI Qiao-si (Plant Protection Institute of Henan Academy of Agricultural Sciences, Zhengzhou 450002) Cotton spider mites are distributed in all cotton areas in North and South of China. The main cotton harms are Tetranychus cinnabarinus, Mite Cotton production in the general year 20 ~ 30%, serious years can lead to income. 1 morphological characteristics and harmful symptoms adult mites mites body length 0 42 ~ 0 52mm, ...