Synopsis Advances made in the field of molecular biology during the last two and half decades has resulted in a lot of changes in the taxonomy and nomenclature of fungi, bacteria and viruses. Many new plant diseases caused by fungi, bacteria, viruses and protozoa have also been described during this period. Keeping these advances in view, an annotated list of different plant pathogens, diseases and their vectors is presented for a ready reference in this book. It contains an alphabetical arrangement of 1628 fungal pathogens, 234 bacterial pathogens, 191 phytoplasma diseases, 905 plant virus species and satellite RNAs, 36 viroids, 159 nematodes, 123 phanerogamic parasites, 10 parasitic algae, 11 flagellate protozoa, 139 disorders of plants and 51 plant diseases and disorders of unknown etiology. In addition to common names of plant diseases, the book also contains more than 460 insect, mite, fungal and nematode vectors of plant diseases/pathogens. This book will benefit and fulfill the expectation of students, plant pathologists, entomologists, extension workers, forestry scientists, horticulturist and other plant scientists.