The
disease is wide spread in tropical, sub-tropical and warm temperate
regions and has been reported from six of the seven continents. It
is endemic in South Asian, East Asian, Southeast Asian, and even in some central
Asian countries. It is widely distributed throughout the Indian
sub-continent including India, Pakistan, Nepal, and Bangladesh. In
India R. solanacearum is prevalent in all the states excluding Punjab,
Haryana, western part of Uttar Pradesh and Andhra Pradesh.