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天牛有以下为害特点:主要以_危害,钻蛀树干、枝条及根部,往往造成树木衰弱或枯死。部分成虫羽化后需要_,取食花粉、_、_、嫩叶、树汁或果实、菌类等,也会造成不同程度的危害。

时间：2021-09-08 15:37 关键词：青书学堂东北林业大学森林昆虫学

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标准答案：@#@幼虫@#@补充营养@#@树皮@#@嫩枝,

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