adelgid

/uh-del-jid/US // əˈdɛl dʒɪd //

蚜虫,蚜虫病,蚜虫害,蚜虫虫害

Definitions

n.名词 noun

1
- : any of various homopterous insects of the family Adelgidae, as Adelges abietis and Pineus pinifoliae, that feed and form galls on conifers.

The adelgid is fairly vulnerable to cold temperatures—it lives on the outside of its host tree, and dies when the air gets colder than about -5 degrees Fahrenheit.
The progress of two invasive insects, the emerald ash borer, and the hemlock wooly adelgid, could be paused across the midwest by the freeze.