Abstract
The experiment conducted at Faculty of Natural Resources Rajamangala University of Technology Isan Sakhon-Nakhon campus. In the plantation of 3 years old Sangkho 1 clone which is the critical period of growing Mao Luang by the invasion of bark borer (Agrilus planipennis )The experimental design was randomized complete block with 3 replications to compare with 4 organic methods of bark borer control 4 methods of bark borer control were : not control, hand control, spray with wood vinegar, and spray with Metarhizium sp. The number of bark borer in Mao Luang sprayed with Metarhizium sp. and wood vinegar were less than not control and hand control significantly (p>0.05). Hand control was the highest cost/tree.