| 拟菊酯杀虫剂的光敏降解研究 |
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| 引用本文： | 岳永德,花日茂. 拟菊酯杀虫剂的光敏降解研究[J]. 环境科学学报, 1992, 12(4): 466-472 |
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| 作者姓名： | 岳永德 花日茂 |
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| 作者单位： | 安徽农学院植保系 合肥230036(岳永德)，安徽农学院植保系 合肥230036(花日茂) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 研究了哒嗪硫磷、多菌灵和克百威对三种菊酯杀虫剂(氯氰菊酯、溴氰菊酯、氰戊菊酯)的光敏降解效应.在0.03—2.66μg/cm~2剂量范围内,哒嗪硫磷,多菌灵对3种拟菊酯杀虫剂有极显著的光敏效应,光解速度常数分别是拟菊酯杀虫剂单独照光的1.54—1.88倍和1.41—1.72倍.克百威对氯氰菊酯和溴氰菊酯有显著的光猝灭效应.当克百威和哒嗪硫磷共存时,克百威明显减弱哒嗪硫磷对氯氰菊酯和嗅氰菊酯的光敏效应,而增强对氰戊菊酯的光敏效应.
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| 关 键 词： | 杀虫剂 光敏剂 光降解 |
| 收稿时间： | 1991-01-29 |
STUDIES ON PHOTOSENSITIVE-DEGRADATION OF PYRITHROID INSECTICIDES |
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| Yue Yongde and Hua Rimao. STUDIES ON PHOTOSENSITIVE-DEGRADATION OF PYRITHROID INSECTICIDES[J]. Acta Scientiae Circumstantiae, 1992, 12(4): 466-472 |
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| Authors: | Yue Yongde and Hua Rimao |
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| Affiliation: | Anhui Agricultural College, Hefei 230036 and Anhui Agricultural College, Hefei 230036 |
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| Abstract: | Photosensitive or photoquenching effects of pyridaphenthion, carbendazim and carbofuran on photodegradation of cypermethrin, del tamethrin and fenva-lerate were studied. The photolytic rates of 3 pyrithroid insecticides were accelerated significantly by pyridaphenthion and carbendazim. A significant positive correlation between the dosage of photosensitizers and their photosensitive efficiency was observed, a negative correlation existed between the dosage of pyrithroid insecticides and photosensitive efficiency of the photosensitizers. As a photoquencher carbofuran delayed the photolytic rates of cypermethrin and deltamethrin. The photosensitive effect of pyridaphenthion on cypermethrin and deltamethrin was counterbalanced in some degree by carbofuran when photosensiti-zer and photoquencher coexisted with cypermethrin or deltamethrin. |
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| Keywords: | phrithroid insecticides photolysis photosensitizer photoquencher. |
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