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六点始叶螨Eotetranychus Sexmaculatus Riley.属蜱螨目,叶螨科.群众称油桐黄蜘蛛,落叶蜘蛛或过火风.六点始叶螨是我省油桐最严重的害虫.六点始叶螨在桐叶背用口针吸取养分,引起叶子变形、形成褐色块斑、变黄、枯焦、脱落,造成桐果不饱米,油质降低,出油率下降3—5%.严重受害时,桐叶落光,桐果干瘪,秋后又发叶开花,消耗大量养分,使树势生长衰弱,几年不能恢复正常年产量.
Six spider mite Eotetranychus Sexmaculatus Riley. Is an acarina, spider mite Division. The masses called the tung tree yellow spider, deciduous spider or over-wind. Six-spotted spider mite is the most serious pest Tung Oil. Leaf back with oral needles to absorb nutrients, causing the leaf deformation, the formation of brown patches, yellowing, dry coke, fall off, resulting in Tonggu not full rice, oil decreased, the oil rate decreased by 3-5%. Serious victims, Falling light, Tongguo shriveled, autumn foliage flowering, consumption of large amounts of nutrients, so that weak growth potential of the tree, a few years can not be restored to normal annual output.