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1·Healthy trees are also better able to fend off bark beetle.

健康的树木也能更好地抵御树皮甲虫。

2·Across vast areas of western North America, increasingly mild winters are causing massive outbreaks of bark beetle.

在北美西部的广大地区，日益温暖的冬季正导致树皮甲虫的大规模爆发。

3·First, the cedar bark beetle.

首先是杉皮甲虫假说。

4·One hypothesis is that the yellow cedar decline may be caused by insect parasites, specifically the cedar bark beetle.

其中一个假说认为黄杉数量下降是由以衫皮甲虫为代表的寄生害虫导致。

5·During a recent survey of fungi associated with bark beetle in Qinling Mountains of China, a new species was isolated, and the aim of this study was to describe this fungus.

报道了与危害中国秦岭华山松的华山松大小蠹相关的真菌新种，描述了其有性阶段和无性阶段的形态特征。研究标本保存于西北农林科技大学。

6·He could see the beetle under the bark, and draw it forth unharmed for us to squint at through the magnifying glass.

他能看到树皮下的甲虫，并把它毫发无伤地捉下来，放在放大镜下让我们看。

7·The beetle attacks mature trees only; its larvae ultimately kill the tree by feeding under its bark.

山松甲虫只寄生于成年树木，它的幼虫会通过取食树皮下的组织最终杀死树木。