nstitute of Plant Protection Jiangsu Academy of Agricultural Sciences Nanjing China;
College of Forestry Nanjing Forestry University Nanjing China;
Jiangsu Xuzhou Sweet Potato Research Center Xuzhou Jiangsu Province China;
nstitute of Plant Protection Jiangsu Academy of Agricultural Sciences Nanjing China;
nstitute of Plant Protection Jiangsu Academy of Agricultural Sciences Nanjing China;
College of Forestry Nanjing Forestry University Nanjing China;
nstitute of Plant Protection Jiangsu Academy of Agricultural Sciences Nanjing China;