Excessive use of chemicals and pesticide in agricultural crops is being deplored by the community and scientists. It is because of the fact that, these not only result in environmental and safety hazards but also lead to development of new strains of pests and pathogens. Thus the use of 'organic products' which do not have any utilization of chemical fertilizers and pesticides are increasing day by day.The book deals with the detailed description about a number of biopesticides which are used for management of fungi, bacteria, virus and nematodes. Topics like biological control of soil borne fungi, plant viruses, applications of bacteria, Rhizobacteria, plant species etc. are discussed in detail in the book.The traditional aspects of biopesticides management along with the future prospects and biotechnological approaches and applications have been dealt in the book. As biopesticides industry is growing at a fast pace and the use of new tools and techniques by the researchers are making it more meaningful, the volume as a whole will serve as a tool for the management of diseases in an eco-friendly manner.