ABSTRACK Oil palm (Elaeis guineensis Jacq. L) is a very important plantation crop. Pests, especially rhinoceros beetle (Oryctes rhinoceros L.), are the main constraints in their cultivation. The solution offered is to use the biological agent Baculovirus oryctes. The aim of this study was to obtain a better concentration of local Baculovirus oryctes to control Oryctes rhonoceros L. larvae …