The Investigation and Epidemic Study on Apple Diseases and Harmful Insects in Lijiang, Yunnan Province

• TAN Xiaohua, 
• MA Xuelin, 
• KONG Baohua, 
• MA Jun, 
• LI Chengfeng, 
• ZHANG Qiuju, 
• REN Shansong, 
• HUANG Wenjing, 
• LI Qiang, 
• CAO Keqiang