The database, Radobase attempts to assemble information about different species of the genus Radopholus, along with their morphology, host preference, existing sequence data and literature in a searchable database. Details of 26 species of Radopholus, presently considered valid, are made available in this database. Features like morphometric and sequence comparison are added to the database, which can be used to compare morphological characters of two or more species. RadoBlast provides users with the facility to check similarity of a sequence against all available Radopholus sequences. The database also contains a search window to check the host status of various plants and links to various sites related to nematology, widely used tools for nematode sequence analysis etc. This database will help in comparison of different species of Radopholus by providing all available resources under a single platform, thus making studies on various species of Radopholus simple and easy.