Urdbean is an important pulses crop grown worldwide. Urdbean seed contain protein (24%), phosphoric acid and lycine it serves a cheaper source of protein for the poor man, it is rightly called the poor man's meat.ULCV is an important disease of urdbean in Pakistan because it causes huge losses in production of urdbean. The susceptible germplasm and favorable environmental conditions also contribute towards the wide spread outbreak of viral diseases. This interesting handbook discusses urdbean leaf crinckle virus, an unclassified virus in naturally infected urdbean legume. The book presents information regarding resistance sources and resistance- breeding, vectors, environmental factors and management practices with the help of which disease incidence can be managed. Plant virologists, Plant breeders and students of plant virology will find this an indispensable guide to legume virus. The editors, internationally known plant pathologists and biotechnologist, provide authoritative descriptive symptomatic signatures of virus diseases, to aid in the diagnosis and possible control of viruses.