1. Department of Plant Pathology, 351 Bessey Hall, Iowa State University, Ames, Iowa 50011
2. Division of Forest Protection, Taiwan Forestry Research Institute, 53 Nanhai Road, Taipei 10066, Taiwan
3. Forestry and Forest Products Research Institute, Kyushu Research Center, Kurokami 4-11-16, 860-0862, Japan
4. Institute of Botany, Azerbaijan National Academy of Sciences, Badamdar 40, Baku AZ1073, Azerbaijan
5. Southern Research Station, USDA Forest Service, Athens, Georgia 30605