Castor (Ricinus communis L.) belongs to family Euphorbiaceae is one of the most important and valuable non-edible in oilseed group. It can be grown under varying soil types and erratic nature of monsoon due to its drought tolerance habit. Of the nine biocides evaluated against S. litura infesting castor, Spodoptera litura Nuclear Polyhedrosis Virus @ 250 LE/ha, Beauveria bassiana (0.4%) were effectively manage the incidence of S. litura on castor. These two biocides produced higher (26.77 to 28.33 q /ha) yield of castor. In the above treatments, yield increase over control ranged from 81.30...