adelgid

1. In Great Smoky Mountains National Park, an invasive insect the balsam woolly adelgid has killed millions of Fraser firs, as seen here on Clingmans Dome.
   从克灵曼斯峰圆顶放眼望去，在大烟山国家公园，一种侵略性的昆虫&球形蚜，已经消灭掉了数百万棵的弗雷泽冷杉树。

noun

1. any of various insects that feed and form galls on conifers