dutch elm disease造句
1 But that died with the Dutch Elm disease that I guess struck all the elm trees.
2 A North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
3 Long called the "Forest City, " Portland maintains at least 20, 000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.
4 The output was adjusted to the same pitch as the tree's screams and I threatened him with everything from falling branches to Dutch elm disease.
5 Then one year, agricultural catastrophe struck Michigan in the form of Dutch Elm Disease.
6 Holmes crossed two compatible races of ceratocystis ulmi, the causal agent of Dutch elm disease.
7 Britain's horse chestnut trees, providers of conkers for generations of schoolboys, are dying in their thousands in the worst case of tree blight since Dutch elm disease 30 years ago.
8 Long called the forest City, ?Portland maintains at least 20, 000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.
9 North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.