Occurrence regularity and control threshold of Aphis glycines in fresh soybean fields.
Author of the article:ZHENG Yong-Li1，YAO Shi-Tong2
Author's Workplace：(1.General Station of Plant Protection of Zhejiang Province,Hangzhou 310020,China; 2. Plant Protection Station of Haining County, Haining 314400,China)
Key Words：fresh soybean; Aphis glycines; occurrence regularity; control threshold
Abstract：The occurrence and control threshold of Aphis glycines Matsmura in fresh soybean field were studied through methods of field systematic investigation. The results showed that the population growth of A. glycines accorded with Logistic model,