荷兰榆树病
- 网络dutch elm disease
荷兰榆树病
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许多榆树死于荷兰榆树病。
Many elms died from Dutch elm disease .
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这种药也被用于治疗荷兰榆树病和解决艺术品受到霉菌影响的问题。
It 's also been used on trees with Dutch elm disease and on artwork affected by mold .
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长期以来,波特兰市被称为“森林城”,现在至少保留着2万棵树,其中包括约100棵榆树。这些榆树是在20世纪60年代所爆发的荷兰榆树病中幸存下来的。
Long called the " Forest City , " Portland maintains at least 20000 trees today , including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease .