The objective of study was to know the effectivity of B. bassiana isolate from Bogor and Pagaralam in-half ripe rice media against third-instar larvae of P. xylostella. The experiment was started from January 2004 until February 2005 in the Entomological and Phytopatological Laboratories, Department of Plant Pests and Diseases, Agriculture Faculty of Sriwijaya University.P. xylostella (Lepidopt…