Dutch elm disease
noun
mass noun
1- a fungal disease of elm trees that is spread by elm bark beetles. A virulent strain of the fungus which arose in North America has destroyed the majority of elms in southern Britain.荷兰榆树病。
1.1
- The fungus is Ceratocystis ulmi, subdivision Ascomycotina.该真菌为榆梢枯长喙壳, 子囊菌亚门。