Pesticides are indispensable in agricultural development, but their effectiveness is often hindered by natural factors like rain-off and degradation. Herein, tebuconazole nanopesticides (TEB NPs) with leaf-adhesive, water-stable, and small-sized were successfully prepared by flash nanoprecipitation using the biodegradable polyethylene glycol-b-poly (lactic-co-glycolic acid) as a carrier. The nanopesticides could be efficiently deposited on plant leaves with uniform distribution and exhibited a 14° lower contact angle with foliage compared to commercial suspensions. The encapsulation of TEB within the polymer enhanced its resistance to photolysis, resulting in a 5-h extension of its half-life. TEB NPs were readily taken up by fungi and plants, thereby enhancing fungicidal efficacy. This nanopesticide could achieve the desired antifungal effect with reduced dosage and improved pesticide utilization. Therefore, the work is expected to provide a simple nanoplatform for improving pesticide utilization and promoting green agriculture.

中文翻译：

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用于高效叶沉积的工程可生物降解纳米农药和植物杀菌剂

农药在农业发展中不可或缺，但其有效性往往受到降雨和退化等自然因素的阻碍。本文以可生物降解的聚乙二醇-b-聚（乳酸-乙醇酸）为载体，通过快速纳米沉淀法成功制备了具有叶粘性、水稳定性和小尺寸的戊唑醇纳米农药（TEB NPs） 。纳米农药可以有效地沉积在植物叶子上，分布均匀，与商业悬浮液相比，与叶子的接触角低14°。将 TEB 封装在聚合物中增强了其抗光解性，使其半衰期延长了 5 小时。 TEB NPs很容易被真菌和植物吸收，从而增强杀菌效果。这种纳米农药可以减少剂量并提高农药利用率，从而达到预期的抗真菌效果。因此，这项工作有望为提高农药利用率和促进绿色农业提供一个简单的纳米平台。