1. Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan
2. Division of Forest Insect Pests and Disease, Korea Forest Research Institute, Seoul 130-712, Korea
3. Mie University, Tsu 514-8507, Japan
4. Department of Biological Sciences, Dankook Unversity, Cheonan 330-714, Korea
5. Department of Microbiology, Dankook Unversity, Cheonan 330-714, Korea
6. Graduate School of Agricultural and Life Scieneces, The University of Tokyo, Tokyo 299-5503, Japan