| 克蚧威农药对家蚕的毒力及残效期研究 |
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| 引用本文： | 陈小平,严欲民,谈廷桂,贾利琼,唐聘芳,毛业炀,唐华伦,何炳林,陈健.克蚧威农药对家蚕的毒力及残效期研究[J].蚕学通讯,1997(3). |
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| 作者姓名： | 陈小平 严欲民 谈廷桂 贾利琼 唐聘芳 毛业炀 唐华伦 何炳林 陈健 |
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| 作者单位： | 四川省农科院蚕业研究所(陈小平,严欲民,谈廷桂,贾利琼,唐聘芳),四川省南充市茧丝绸公司(毛业炀,唐华伦,何炳林,陈健) |
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| 摘 要： | 本文介绍了克蚧威对家蚕的毒力和残效期.结果表明:克蚧威对家蚕有很强的触杀作用,秋季对三龄蚕的触杀毒力回归方程为Y=2.458十1.862X,Lc_(50).为23.185ppm,LD_(50)为0.012ug/头,春季800倍液喷桑叶对家蚕的安全间隔期为10天.蚕对克蚧威的抗性因蚕龄大小和季节不同有异.
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| 关 键 词： | 农药 克蚧威 家蚕 毒力 残效期 |
TOXICITY OF "KEJIEWEI" AND THE DURATION OF ITS RESIDUAL EFFECT ON THE LARVAE OF BOMBYX MORI |
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| Chen Xiaoping Yan Yumin Tan Tinggui Jia Liqiong Tang Pinfang.TOXICITY OF "KEJIEWEI" AND THE DURATION OF ITS RESIDUAL EFFECT ON THE LARVAE OF BOMBYX MORI[J].Newsletter of Sericultural Science,1997(3). |
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| Authors: | Chen Xiaoping Yan Yumin Tan Tinggui Jia Liqiong Tang Pinfang |
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| Abstract: | In an experiment with "Kejiewei", a newly developed insect- and acar-icide, its toxici-ty and the duration of its residual effect on silkworm (Bombyx mori) were studied. Thispesticide showed a strong contact poisoning effect on the larvae of silkworm, suggestingthat its utilization in silkworm rooms should be avoided. A contact poisoning toxicity re-gression equation for the 3-instar silkworms was established: Y = 2. 458 + 1. 862X, withLC50 being 23. 185 ppm and LD50 being 0. 012 ug. When its solution, diluted to 800 times.was used to spray the mulberry trees, an interval of 10 days starting from the spray wasnecessary for the safety of the silkworm. The tolerance of the silkworm to Kejiewei variedwith different instars of the silkworm and with different seasons. |
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| Keywords: | pesticide Kejiewei Bombyx mori toxicity residue effect |
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