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使用LCMSMS在中选择的杀虫剂的消散动态和持续毒性的研究

Sivasankari Sivakumar¹, Suganthi Angappan², Elaiyabharathi Thiyagarajan¹

¹Department of Agricultural Entomology, Tamil Nadu Agricultural University, Tamil Nadu State, Coimbatore, 641003, India.

Scientific reports

|January 28, 2025

概括

托尔芬皮拉德比菲普罗尼尔更好地控制三,其残留物在水果中消散得更快. 这使得托尔芬皮拉德成为综合害虫防治的更安全的选择,减少出口风险和消费者健康问题.

科学领域:

农业科学农业科学
昆虫学昆虫学是一门学科.
环境化学环境化学

背景情况:

作物面临着主要害虫Trips parvispinus造成的重大损害.
农药的使用引发了对残留物,出口拒绝和消费者健康风险的担忧.
评估杀虫剂的有效性和残留物持续性对于可持续农业至关重要.

研究的目的:

为了比较fipronil和tolfenpyrad对中的Thrips parvispinus的现场疗效和持久毒性.
分析这些杀虫剂在叶和果实中的残留持久性.
确定安全的收获前间隔,并评估饮食风险.

主要方法:

进行了实地试验,以评估fipronil和tolfenpyrad对thrips的生物有效性.
在叶和果实中进行了残留分析,使用液体染色学-质谱/质谱 (LC-MS/MS).
评估了残留物在叶子上的持续毒性和水果中的消散率.

主要成果:

托尔芬皮拉德实现了比菲普罗尼尔 (37.61-58.07%) 的更高的现场疗效 (60.94-78.53%).
菲普罗尼尔的疗效在5-7天内下降;两者的残留物持续了20天 (菲普罗尼尔) 和30天 (托尔芬皮拉德).
叶子中的托尔芬皮拉德残留物显示出持续10-15天的毒性;水果残留物持续40天 (托尔芬皮拉德) 和25天 (菲普罗尼尔),可接受的收获前间隔,没有饮食风险.

结论:

与fipronil相比,tolfenpyrad显示出对Trips parvispinus的更高的疗效和更长的作用时间.
托尔芬皮拉德在果中提供更快的残留物消散和更短的收获前间隔,表明它适合于综合性害虫管理 (IPM).
这些发现支持使用tolfenpyrad作为在种植中更安全,更有效的害虫防治选项.

关键词:

这是一种的.菲普罗尼尔是什么意思菲普罗尼尔持久的毒性持久的毒性剩余的东西剩余的东西这是一种食症 (thrips).托尔芬皮拉德的使用方法

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