Description

This book's objective is to teach students to the fundamental ideas and concepts behind managing plant diseases. The physiological effects or symptoms of plant diseases are frequently used to categorise them. However, many diseases have essentially same symptoms and signs but are brought on by totally different bacteria or substances, necessitating the employment of entirely different control strategies. The classification of diseases based on their symptoms is also insufficient because a causal agent may generate a variety of symptoms, even on the same plant organ, several of which frequently coexist. One type of biological control is the use of resistant plants to eradicate plant diseases. Host resistance will be discussed separately from microbial antagonists in this chapter due to its significance. The diseases of economic significance caused by fungi, bacteria, viruses, and virus-like organisms of each crop are covered, with information on their history, distribution, damages sustained, symptoms, most recent diagnostic tools, epidemiology, and integrated applied management techniques using cultural, chemical, and genetic resources use of bio control agents being adopted worldwide.