The aftermath of an invasion: Structure and composition of Central Appalachian hemlock forests following establishment of the hemlock woolly adelgid, Adelges
The exotic hemlock woolly adelgid, Adelges tsugae (Annand) (HWA), currently threatens to destroy the hemlock forests throughout the eastern United States (McClure, 1997).
Exotic natural enemies of Adelges tsugae and their prospect for biological control.
and a galler, the spruce gall adelgid, Adelges abietis (L.
Effects of feeding by moderate-to-high densities of Zeiraphera canadensis and Adelges abietis on Picea glauca were evaluated at a seed orchard at Pokiok, New Brunswick, Canada (46 [degrees] 7 [minutes] N, 67 [degrees] 15 [minutes] W) in 1991 and at Queensbury, a seed orchard located [approximately]15 km east of Pokiok, in 1994.
Introduced species such as Adelges tsugae (Annand), hemlock woolly
against Adelges tsugae was observed at sites A1 and A3.
Hemlock woolly adelgid, Adelges
tsugae Annand (Hemiptera: Adelgidae), is an exotic insect species capable of rapidly reducing populations of eastern hemlock throughout the eastern United States (McClure & Fergione 1977; Buck et al.
was released in Connecticut for control of Adelges tsugae, the Japanese hemlock woolly adelgid (Grant 1995).
Density-dependent feedback and population cycles in Adelges tsugae (Homoptera: Adelgidae) on Tsuga canadensis.
Hemlock woolly adelgid, Adelges tsugae (Annand), has devastated stands of Eastern hemlock, Tsuga canadensis L.
Evaluation of hemlock (Tsuga) species and hybrids for resistance to Adelges tsugae (Hemiptera: Adelgidae) using artificial infestation.
The toxic effects of fatty acids and their salts on the balsam woolly aphid, Adelges
Phenomena of Adelges
piceae populations (Homoptera: Phylloxeridae) in North Carolina.
This diaspidid often co-exists with the exotic hemlock woolly adelgid, Adelges
tsugae Armand (Hemiptera: Adelgidae), throughout the northern United States (McClure 2002), where they cause extensive damage to eastern hemlock and threaten to disrupt forest composition.