Abstract
Plant pathologists throughout the globe are working closely to develop a powerful solution for food and agricultural commodities protection from diverse pathogens. Nanobiotechnology has great potential in agriculture especially in plant health has been reported. Management of most beneficial micronutrient and pesticides for sustainable crop production is a priority-based area of research in agriculture. Copper nanoparticles are one among the critical nanosubstances because of their diverse characteristics and applications. The present chapter summarizes the modern-day knowledge and the future prospects in the applications of copper nanomaterials in plant pathology studies. Applications involve nanosensors, antibacterial agent, antifungal agent, plant growth promotion, and plant protection. The beneficial and deleterious effects of Cu nanoparticles through enhanced root and shoot length and fruit and crop yield and substantial increase in vegetative biomass of seedlings in different plant species were also explored.