1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
2. Graduate School of Horticulture, Chiba University, Matsudo City, Japan
3. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
4. United States Department of Agriculture, Agricultural Research Service, Crop Improvement and Protection Research Unit, Salinas, California, USA
5. Department of Plant Pathology, University of California, Davis, Salinas, California, USA