论文部分内容阅读
黄栌(Cotinus Coggyg ria Scop Var Cine-reu Engl.)是驰名国内外的北京香山红叶主体树种。自1980年发现该树有黄萎病以来,扩展蔓延迅速。据香山公园在1990年调查,发病率达46.2%。在已确定黄栌黄萎病菌为大丽轮枝菌(Verticillium dahliae)的基础上,笔者对黄栌黄
Cotinus coggygriac Scop Var Cine-reu Engl. Is famous at home and abroad of Beijing Xiangshan Hongye main tree species. Since the tree was found to have Verticillium wilt in 1980, the expansion has spread rapidly. According to Xiangshan Park in 1990 survey, the incidence rate reached 46.2%. Based on the determination of Verticillium dahliae in Verticillium dahliae,