【摘要】 本文研究了不同温度对针叶小爪螨Ｏｌｉｇｏｎｙｃｈｕｓｕｎｕｎｇｕｉｓ（Ｊａｃｏｂｉ）的卵和幼螨至成螨的影响。结果表明：滞育卵在０℃、５℃、１０℃（ＲＨ６０％～７０％）条件下，分别经１２０、１００、１００ｄ可解除滞育，其孵化率一般在４０％～６０％之间，自然解除滞育的孵化的率达８０％左右，２５℃为该螨的适温。成螨寿命随温度增高而缩短。在２２～２７．５℃的范围内，平均单雌产卵量为４０～４５粒。越冬卵和夏卵的发育起点（Ｃ）分别为５．３℃和１１．３℃，有效积温（Ｋ）分别为２７１．０日度和８７．７日度。幼螨至成螨的Ｃ为８．８℃，Ｋ为９８．２日度。根据有效积温预测该螨在山东泰字地区一年可完成１１代左右更多还原

【Abstract】 The present paper deals with the effect of different temperatures on Oligonychus ununguis (Jacobi).The egg’s diapause is broken after treatment at 0℃ for 120 days or at 5℃ or 10℃ for 100 days(RH60%-70%).The hatching rate of eggs of broke diapause by low temperature treatment is 40%-60%,and the rate of broke diapause by nature is about 80%.The most suitable temperature for this mite is 25℃ ,The life span of adults is negatively correlated with temperature .The average egg number per female is 40-45 under 22-27.5℃.The temperature for hibernating eggs is 5.3℃ ,and for aestival eggs is 11.3℃.The effective accumulated temperature for them is 271.0 degree-days and 87.7 degree-days respectively The temperature zero from larva to adult is 8.8℃ ,the effective accumulated temperature is 97.2 degree-days. Oligonychus ununguis (Jacobi)has about 11 generations one year in Taian area according to errective accumulated temperature law.更多还原