【摘要】 <正> 朱砂叶螨(Tetranychus cinnabarinus)是世界性的重要害螨,在我国主要为害棉花、豆类、瓜类及茄子等作物。由于它对农药易产生抗性,在生产上危害日趋严重。叶螨的基础生态学研究,是预测种群数量动态的理论依据,在其生物防治中,对确定捕食性天敌的释放时间和释放数量有实际指导意义。这方面国外曾做过大量研究(Boudreaux,1963;Vrie,M.Vand,1972;Hazan,A.U.等,1974;Shin,C.I.T.等1976),国内报导很少,只台湾何琦琛等(1979)曾对二斑叶螨(T.urticae)进行过研更多还原

【Abstract】 The life history of Tetranychus cinnabariinus (Bosduval)(Acari:Tetranychidae)was investigated under two light conditions of 15hr (9hr dark)and 9hr (15hr dark with constant temperature (29℃) and relative humidity (60—80%). The periods of life cycle, preoviposition and oviposition, oviposition rate, sex ratio, net reproductive rate, mean generation time, and intrinsic and finite increasing rates were determined respectively.更多还原