In recent years, authors from all around the world have become interested in the connections between nanomaterials and plant growth. Consequently, a novel area of nanotechnology known as “green nanotechnology” emerged, fusing biological concepts with physical and chemical processes to create nanoparticles with targeted applications that are environmentally benign. A renewable and environmentally acceptable way to produce nanoparticles (NPs) is currently being investigated and improved through the use of microbes and plants through biochemical synthesis techniques. The popularity of biological synthesis has increased as a potential remedy for the shortcomings associated with both chemical and physical synthesis techniques. Because they produce huge quantities of proteins, have high productivity, are easy to handle, and produce residues with minimal toxic effects, fungi are interesting as reduction and stabilization agents in the naturally occurring production of silver nanoparticles (AgNPs). The usage of AgNPs as bactericides and fungicides as well as nanofertilizers to improve plant health has been incorporated into disease management techniques. Only Ag has received significant attention thus far, despite reports of over 18 different single-element and carbon nanomaterials impacting disease and/or plant infections. Certain AgNPs work primarily as nutritional modifiers that change the host’s nutritional state and trigger defensive mechanisms, while others act as direct antibacterial agents. Therefore, the methods by which diseases are controlled by AgNPs are intricate and involve a range of direct and indirect effects on the pathogen, the plant, and their relationship to one another.