Copper Nanostructures: Next-Generation of Agrochemicals for Sustainable Agroecosystems considers the impact of copper-based nanostructures on agri-food sectors. Sections highlight the green synthesis of copper nanoparticles, production mechanisms, eco-safety, and future perspectives, discuss the increasing importance of copper nanomaterials in plant protection applications, describe the use of copper nanostructures in plant science applications, cover antimicrobial applications, explore copper nanostructure applications, and summarize current applications in agroecosystems, such as copper nanoparticles as nanosensors, their negative ecological effects, estimation risks, and more.