The use of pesticides together with nano-delivery systems can improve the utilization rate of pesticides due to the envelope and controlled release function of nano-carriers. This precisely matches the needs of different target crops. Herein, a dinotefuran supramolecularly bonded layered double hydroxide (D-LDH) nano-pesticide has been designed to improve the controlled release properties and insecticidal activity in cucumber and cotton plants. As confirmed by XRD patterns, FT-IR spectroscopy, SEM images and zeta potentials, dinotefuran molecules are supramolecularly bonded onto LDH nano-carriers, which can be effectively controlled by regulating the carrier ratio. The wettability performance and foliar surface adhesion of D-LDH are significantly improved due to hydrogen bonding interaction. The control effect of D-LDH on Aphis gossypii remains 90.1% after 60 days, which means only a one time application can achieve effective control during the whole growth cycle. The applications of foliar spraying on cucumber against Trialeurodes vaporariorum and Bemisia tabaci show that the control effect is still more than 80% after 14 days when the dose is ∼33% less than the recommended minimum dose. Overall, this novel D-LDH nano-pesticide shows the possibility in improving the utilization rate of pesticides and reducing application times.

中文翻译：

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基于层状双氢氧化物纳米载体的具有增强的有效持续时间和控释特性的呋虫胺纳米农药

由于纳米载体具有包膜和控释功能，将农药与纳米递送系统一起使用可以提高农药的利用率。这正好匹配了不同目标作物的需求。在此，呋虫胺超分子键合层状双氢氧化物 (D-LDH) 纳米农药被设计用于改善黄瓜和棉花植物的控释特性和杀虫活性。XRD图谱、FT-IR光谱、SEM图像和zeta电位证实，呋虫胺分子超分子结合到LDH纳米载体上，可以通过调节载体比例来有效控制。由于氢键相互作用，D-LDH的润湿性能和叶面附着力显着提高。D-LDH 的控制作用棉蚜在60天后仍保持90.1%，这意味着在整个生长周期中只需一次施用即可实现有效控制。叶面喷施上防治黄瓜应用温室白粉虱和烟粉虱表明该控制效果还是后14天的80％以上时的剂量低于建议最小剂量更少〜33％。总体而言，这种新型D-LDH纳米农药显示出提高农药利用率和减少施药次数的可能性。