The green synthesis of graphene nanoparticles by leaf extract and precursor graphene nanomaterial These nonmaterial effects on tomato seed germination and viral deactivation The TMV virus poses a major challenge to tomato production in numerous countries, resulting in extensive harm to tomato plants and substantial global losses. The is a highly infectious plant virus that affects a wide range of crops, including Solanum lycopersicum. Current methods of controlling TMV are limited and often involve the use of harmful chemicals that can negatively impact the environment, animal health, and human health. In this study, we propose the use of graphene nanomaterials as a potential solution for deactivating TMV in Solanum lycopersicum. Graphene nanoparticles were synthesised using a modified by hummers method and characterised using UV-visible spectroscopy. this method to quantify the nanoparticles' optical characteristics and absorbance properties. The graphene nanomaterial-based solution was effective in deactivating TMV in Solanum lycopersicum plants, with a significant reduction in TMV levels observed in treated plants compared to untreated controls. The graphene nanomaterials were found to be non-toxic to the plants, with a positive impact observed on plant growth and development as they promoted seedling germination rate and enhanced root and shoot length. This study provides a foundation for future research on the various applications of graphene nanomaterials in agriculture and the environment. Further research can explore their potential benefits and risks, as well as optimise their production and application methods to ensure their safe and sustainable use. These findings suggest that graphene nanomaterials may be a promising solution for controlling TMV in Solanum lycopersicum and other crops, with potential applications in sustainable agriculture. Further studies are needed to optimise the concentration and application of the graphene nanomaterials as well as evaluate their long-term effects on plant health and the environment.