A training session on principles and practice of rubber tree exploitation was organised in March 2003 in Socfindo Tanah Besih Rubber Estate. Theoretical principals and Cirad-cp / Socfindo recommendations regarding fundamentals and specificity of rubber tree exploitation were presented to Socfindo Head Office management, group managers n°2 and 3, Rubber Estate managers and plantation assistants. Oral presentations were followed by a one-day practice visit on field.