1. Interactions between invertebrate herbivores with different feeding modes are common on long‐lived woody plants. In cases where one herbivore facilitates the success of another, the consequences for their shared host plant may be severe. Eastern hemlock (Tsuga canadensis), a canopy‐dominant conifer native to the eastern U.S., is currently threatened with extirpation by the invasive stylet‐feeding hemlock woolly adelgid (Adelges tsugae). The effect of adelgid on invasive hemlock‐feeding folivores remains unknown.

中文翻译：

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入侵食草动物之间的促进：铁杉羊毛 adelgid 增加了吉普赛蛾对东部铁杉的偏好和表现

1. 不同摄食方式的无脊椎动物食草动物之间的相互作用在长寿木本植物中很常见。在一种食草动物促进另一种成功的情况下，它们共享的寄主植物的后果可能很严重。东部铁杉 (Tsuga canadensis) 是一种原产于美国东部的以冠层为主的针叶树，目前正面临着以针尖为食的侵入性铁杉羊毛 adelgid (Adelges tsugae) 的灭绝威胁。adelgid 对侵入性铁杉食叶动物的影响仍然未知。