The occurrence of tension wood is a serious natural defect in rubber wood (Hevea brasiliensis) which cause more than 40;recovery loss in rubber wood processing industries. Tension wood zones cannot be distinguished clearly to eliminate such zones during sawing operations. The present study deals with the development of a macroscopic staining technique for the visual identification of tension wood zones in rubber wood which help to eliminate compact tension wood zones in rubber timber during sawing operations. The staining formulation using zinc chloride, iodine and potassium iodide was tester, which gave distinct colour differentiation between normal and tension wood zones in green sawn wood disc, whereas in partially dried and fungus infected wood discs, it did not give such colour variation.