The book will help in transferring information regarding root rot disease of Castor and will also be helpful in its causal agent's (Macrophomina phaseolina) facts. Screening of varieties/genotypes will also give clue about quality of resistance genes which in turn can be utilized for breeding resistance cultivars. Since root rot is a very serious problem, it is necessary to manage the disease by integrating all the management methods in vitro and in vivo which will provide new information on its management.