This is a comprehensive and up-to-date resource that delves into the world of phytoplasmas - tiny bacteria that infect plants, causing diseases with significant agricultural and horticultural implications. This new edition combines the latest scientific knowledge, cutting-edge methodologies, and practical insights to provide a complete picture of phytoplasma research, from taxonomy to disease management. It presents in-depth coverage of phytoplasma phylogenetics, epidemiology, vector control strategies, and host-pathogen interactions. It covers the molecular mechanisms underpinning phytoplasma infections and explores recent breakthroughs in genome sequencing techniques. This edition also highlights the importance of precision agriculture principles in phytoplasma disease management and discusses novel approaches such as RNA interference for disrupting phytoplasma transmission.