Screening of High Efficiency and Low Residue Fungicide of Tobacco Powdery Mildew in Field

• Zhikai DONG, 
• Ting MIAO, 
• Jie SONG, 
• Yuemao WANG, 
• Congping LI, 
• Zhengxiong ZHAO, 
• Xiangyang LI, 
• Lin LIU