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[方法]采用离心和稀释法、高效液相色谱分析、室内杀虫活性测定和盆栽试验,研究了10%三氟氯氰菊酯微胶囊悬浮剂的缓释性能和杀虫作用。[结果]三氟氯氰菊酯的微胶囊吸附率可达95%左右。经离心和稀释处理获得的样品I~VII中,对3龄黏虫杀虫活性表现为I>II>V>IV>III≈VI>VII,样品V的杀虫活性低于样品I和II,但显著优于III和VI。且II的盆栽防治效果优于I。[结论]说明10%三氟氯氰菊酯微胶囊悬浮剂具有较好的缓释杀虫性能。
[Method] The sustained-release performance and insecticidal effect of 10% cyfluthrin microcapsule suspension were studied by centrifugation and dilution, high performance liquid chromatography, indoor insecticidal activity test and pot experiment. [Result] Cyhalothrin's microcapsule adsorption rate could reach about 95%. The insecticidal activities of samples I to VII obtained after centrifugation and dilution showed that I> II> V> IV> III> VI> VII for the 3rd instar. The insecticidal activity of sample V was lower than that of samples I and II, But significantly better than III and VI. And II's pot control effect is better than I. [Conclusion] The 10% cyfluthrin microcapsule suspending agent has better sustained-release insecticidal properties.