Natural Incidence, Biological Study and Control of Some Insect Pests in Terminalia belerica Roxb. by Khin Mar Myint, Research Assistant (2) Forest Protection Section, Forest Research Institute, Yezin ,Dr. Myint Thaung, Rector Yezin Agricultural University and Tun Tun Lin, Range Officer Forest Protection Section, Forest Research Institute, Yezin, May 2006