“…Agrochemicals play an important role in pest control and crop yield in modern agriculture. , Enhancing the control efficacy and reducing the loss of pesticides at a low cost, improving the utilization efficiency of pesticides, and reducing their negative impact on the environment are important development trends for their efficient application. − However, the UV degradation and rain-washing loss of pesticides are two important issues that restrict the control efficacy for foliar pest control. In particular, rain washing not only significantly limits the application time and the control efficacy but also increases the environmental risks of pesticides. , Until now, nano drug delivery systems (NDDSs) have been commonly studied as important potential strategies for resolving these issues owing to their nanoscale size effects and flexible targeted delivery. , Many materials have been developed as nanocarriers for NDDSs, such as silicon dioxide systems, carbon systems, polymer systems, and biological particles. − Importantly, the structure and surface chemistry of nanocarriers can be modified to provide some properties and functionalities, like stable and smart transmission, which could allow them to be transported to the desired location in plants. − For this purpose, various functional optimizations are studied, such as responsive controlled release, UV shielding, and adhesion performance. − Although these techniques can improve the efficacy of foliar pest control to some extent, there are still some urgent problems for actual application, such as complex synthesis and modification procedures, high material costs, carrier nondegradation, and incomplete exposure of active ingredients. ,, Therefore, a nanoscale delivery system with simple synthesis and pesticide loading method, environmental degradability, and good foliar functionality that can meet the requirements of foliar efficacy is highly necessary.…”