Bacterial diseases are generated by bacteria in the Plants. These are very small organisms, not seen by the naked eyes. The bacteria are disseminated in infected seeds and travel from plant to plant and field through blowing winds, splash ingrains, sprinkler irrigation, surface drainage water, insects, birds, animals and human beiges, etc. The diseases typically develop, when contaminated seeds are planted infields with a history of the diseases and when the climate is consistently hot and wet or humid. Disease plants may be dwarfed, with the upper leaves crinkled and mottled. Dark green, water-soaked areas may also be visible on the stems. Young seedlings, infected with halo blight develop a chlorosis, which maybe general or confined to the young trifoliate leaves at the top of the plant. This research-based work has a perfect description of bacterial diseases in plants in an interesting manner. This study would to make separate stream in the area of bacterial diseases in plants and be beneficial for students, researchers and scholars, alike.