This collection includes a range of documents discussing various mechanisms and applications in plant and microbial management. Topics cover the use of nanotechnology in agriculture, the role of gibberellins as plant hormones in enhancing growth and yield, biocontrol methods for plant diseases, the antimicrobial action of antibiotics, the efficacy of disinfectants, and traditional Ayurvedic treatments. Each document emphasizes the modes of action of the discussed substances in their respective fields, supporting advancements in agriculture, medicine, and pest control.