armillaria root rot of tree 树木根朽病
purple root rot of tree 树木紫纹羽病
root-rot of tung-oil tree 油桐根腐病
root rot of tree
树木根腐病
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mushrooms are an easy-to-spot sign of disease that may indicate root rot and a potentially unstable tree.
WSJ: Getting to the Roots of Your Trees' Stress
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