| 辛硫磷及毒死蜱对中华稻蝗的毒力研究 |
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| 引用本文： | 刘晶玉,吴海花,郭亚平,马恩波.辛硫磷及毒死蜱对中华稻蝗的毒力研究[J].山西农业大学学报(自然科学版),2007,27(4):424-426. |
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| 作者姓名： | 刘晶玉 吴海花 郭亚平 马恩波 |
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| 作者单位： | 山西大学,生命科学与技术学院,山西,太原,030006 |
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| 摘 要： | 本文采用点滴法分别测定了辛硫磷和毒死蜱对中华稻蝗5龄若虫的毒力,做出了毒力回归曲线并得到毒力回归方程及LD50值。辛硫磷的毒力回归方程为Y=2.79X-6.07,LD50=1.96μg/g虫重,毒死蜱的毒力回归方程为Y=2.86X-7.01,LD50=3.69μg/g虫重。比较两种农药的毒力回归方程、LD50值和95%置信区间,结果表明辛硫磷对中华稻蝗5龄若虫的药效较毒死蜱强。
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| 关 键 词： | 中华稻蝗 辛硫磷 毒死蜱 毒力 |
| 文章编号： | 1671-8151（2007）04-0424-03 |
| 收稿时间： | 2007-04-15 |
| 修稿时间： | 2007-05-20 |
Study of Toxicity of Phoxim and Chlorpyrifos to Oxya Chinensis |
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| LIU Jing-yu.Study of Toxicity of Phoxim and Chlorpyrifos to Oxya Chinensis[J].Journal of Shanxi Agricultural University,2007,27(4):424-426. |
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| Authors: | LIU Jing-yu |
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| Institution: | College of Life Science and Technology, Shanxi University, Taiyuan Shanxi 030006, China |
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| Abstract: | In this paper,the toxicity of phoxim and chlorpyrifos to fifth-instar nymph of Oxya chinensis was assayed using topical application method.The regression equation and LD50 values for phoxim and chlorpyrifos were Y=2.79X-6.07,LD50=1.96 μg/g body weight and Y=2.86X-7.01,LD50=3.69 μg/g body weight,respectively.It was found that the toxicity of phoxim was stronger than that of chlorpyrifos to Oxya chinensis according to the regression equation,LD50 values and 95% confidence interval of the two insecticides. |
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| Keywords: | Oxya chinensis Phoxim Chlorpyrifos Toxicity |
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