| 有机硅对甲氨基阿维菌素苯甲酸盐防治甜菜夜蛾的增效活性研究 |
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| 引用本文： | 李保同,袁银华,汤丽梅.有机硅对甲氨基阿维菌素苯甲酸盐防治甜菜夜蛾的增效活性研究[J].农学学报,2011,1(3):29-33. |
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| 作者姓名： | 李保同 袁银华 汤丽梅 |
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| 作者单位： | 1. 江西农业大学农学院,南昌,330045
2. 江西农业大学农学院,南昌330045;江西正邦化工有限公司,江西高安330800 |
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| 摘 要： | 为研究有机硅助剂对甲氨基阿维菌素苯甲酸盐的增效活性，在测定有机硅水溶液的表面张力及其在固体表面的扩展性能的基础上，采用喷雾法测定了添加有机硅的5%甲氨基阿维菌素苯甲酸盐WDG对甜菜夜蛾的生物活性的影响。结果表明，有机硅可显著降低水溶液的表面张力，在0.01%的浓度下其表面张力可降至26 mN/m；有机硅可提高液滴在固体表面上的扩展，10 μL 0.01%的水溶液扩展直径达34 mm。室内毒力测定结果表明，当有机硅添加量为1%~5%时，5%甲氨基阿维菌素苯甲酸盐WDG对甜菜夜蛾有显著的增效作用，当添加量高于5%时增效增幅缓慢；大田试验结果表明，添加5%有机硅的5%甲氨基阿维菌素苯甲酸盐WDG 33 mg/L药后3天和7天对甜菜夜蛾防效分别为81.57%和82.66%，显著优于对照药剂5%甲氨基阿维菌素苯甲酸盐WDG 33 mg/L、24%氰氟虫腙SC 96 mg/L、5%氯虫苯甲酰胺SC 33 mg/L、20%氟虫双酰胺WDG 40 mg/L和15%精茚虫威EC 43 mg/L处理。
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| 关 键 词： | 差异性补贴 差异性补贴 |
| 收稿时间： | 2011/4/20 0:00:00 |
| 修稿时间： | 2011/4/29 0:00:00 |
Synergistic Activity of Organosilicone to Emamectin Benzoate on Spodoptera exigua |
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| Li Baotong,Yuan Yinhua,Tang Limei.Synergistic Activity of Organosilicone to Emamectin Benzoate on Spodoptera exigua[J].Journal of Agriculture,2011,1(3):29-33. |
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| Authors: | Li Baotong Yuan Yinhua Tang Limei |
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| Institution: | 1 College of Agronomy , Jiangxi Agricultural University , Nanchang 330045, Jiangxi, China; 2 Jiangxi Zhengbang Chemical Ltd ., Gao ＇ an 330800, Jiangxi, China) |
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| Abstract: | Based on the determination for the surface tension of organosilicone solution and its expansion on the solid surface, the bioactivity of 5% WDG emamectin benzoate with organosilicone against Spodoptera exigua using spraying method was determined to study synergistic activity of organosilicone to emamectin benzoate. The determination results showed that the organosilicone significantly reduced the surface tension of aqueous solution. The surface tension of 0.01% organosilicone was reduced down to 26 mN/m. The organosilicone significantly raised the expansion of liquid drop on the solid surface. The expanding diameter of 0.01% organosilicone at 10 μL was 34 mm. The laboratory bioassay results indicated that there were significant synergistic activity of organosilicone to emamectin benzoate against S. exigua while the additional amount of organosilicone were 1%-5%, and a slow increasing rate of synergistic activity while the additional amount of organosilicone was higher than 5%. The results in a field trial showed that the efficacy of 5% WDG emamectin benzoate with 5% organosilicone at 33 mg/L against S. exigua were 81.57 and 82.66% on the third day and on the seventh day after spraying insecticide, respectively, and significantly higher than those of 5% WDG emamectin benzoate at 33 mg/L, 24% SC metaflumizone at 96 mg/L, 5% SC chlorantraniliprole at 33 mg/L, 20% WDG flubendiamide at 40 mg/L and 15% EC indoxacarb at 43 mg/L. |
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| Keywords: | Organosilicone Emamectin Benzoate Spodoptera exigua Bioactivity |
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