This book covers information at a more advanced level on management of Water hyacinth. It provides a broad coverage of novel mechanisms of the antioxidants to their affect. Besides the updation of phytochemistry, also includes chapters on secondary metabolites of the plant due to great therapeutic role. A subjective approach is attempted for the first time in this book with all available information and reference studies on antimicrobial, antioxidant, wound healing, anti-tumor, larvacidal, anticancer, and skin care activity of water hyacinth. This book fills the gap by highlighting weed biochemistry, active principle constituent, their therapeutic role, clinical trial and utility management practices from a therapeutic perspective which is a very novel approach and not yet covered in any book. Supplemented with illustrations and tables, this text is useful for organizations struggling with management approach, scientists, and researchers, students, environmental advisers, county agents, extension specialists, and professionals. This book will definitely add new dimensions in the field of plant science with its detailed account and also acts as new sources of dividend.