Adelges

Those conifers have grown to over twenty feet in height and have been spared by the insect damage from Adelges tsugae Woolly Adelgid that has taken down these trees in the wild.

Looking For Shade* « Fairegarden 2009

The introduction of the gypsy moth (Lymantria dispar), spruce budworm (Choristoneura fumiferana), hemlock wooly adelgid (Adelges tsugae), balsam wooly-adelgid (A. piceae), as well as dogwood anthracnost fungi is altering the forest composition and habitat composition.

Appalachian-Blue Ridge forests 2008

These high elevation communities are naturally subject to increased atmospheric moisture, cooler temperatures, and higher winds, but also now suffer from the effects of acid rain deposition, which tend to be exacerbated in high elevation communities, and from the depredations of an introduced homopteran insect, the wooly adelgid (Adelges spp.).

Appalachian-Blue Ridge forests 2008