Or cankerous face disappears almost, there is few Bao Tai on its. ③ scar period: Cankerous face Bai Tai already disappeared, turn red into bloodshot scar; 或溃疡面几乎消失,其上有极少的薄苔。③瘢痕期:溃疡面白苔已消失,变成红色充血的瘢痕;
Strain virulence determination of poplar bacteria cankerous pathogen 杨树细菌溃疡病病原菌株毒力测定