The hemlock woolly adelgid, native to Asia, was discovered in Virginia in 1951.
From the sacbee.com
The hemlock woolly adelgid is host specific, meaning it only infests hemlock trees.
From the sciencedaily.com
The balsam woolly adelgid, a tiny sucking insect, has caused widespread mortality in forests.
From the sacbee.com
Also near Mount Adams, another pest called the balsam woolly adelgid has complicated the scenario.
From the thenewstribune.com
So far, only extreme cold stops the hemlock woolly adelgid.
From the sciencedaily.com
The hemlock woolly adelgid, a pest native to Asia, threatens Kentucky's hemlocks, and the species that depend on them.
From the kentucky.com
Stands of hemlocks across the ranges of both species have been decimated by infestations of the hemlock woolly adelgid.
From the sciencedaily.com
Fraterrigo said that disturbances created by exotic pathogens and pests such as the hemlock woolly adelgid are increasing.
From the sciencedaily.com
New hybrids of the native eastern hemlock that can survive the invasive insect woolly adelgid are being bred by ARS scientists and their collaborators.