Carriere (Pinales: Pinaceae), to determine its effectiveness on the hemlock woolly adelgid, Adelges tsugae
Annand (Aphidomorpha: Adelgidae) (Eisenback et al.
The tree crown distribution of hemlock woolly adelgid, Adelges tsugae
Oviposition, development, and feeding of Scymnus (Neopullus) sinuanodulus (Coleoptera: Coccinellidae): a predator of Adelges tsugae
caroliniana Engelm) are currently declining rapidly due to infestation by the hemlock woolly adelgid (HWA, Adelges tsugae Annand) and little regeneration is expected (Orwig and Foster, 1998; Preisser et al.
The aftermath of an invasion: Structure and composition of Central Appalachian hemlock forests following establishment of the hemlock woolly adelgid, Adelges tsugae.
Evidence of a polymorphic life cycle in the hemlock woolly adelgid, Adelges tsugae
Annand (Homoptera: Adelgidae).
The exotic hemlock woolly adelgid, Adelges tsugae
(Annand) (HWA), currently threatens to destroy the hemlock forests throughout the eastern United States (McClure, 1997).
Pinaceae) infested with Adelges tsugae
Annand (Hemiptera: Adelgidae) (Lu et al.
Introduced species such as Adelges tsugae
(Annand), hemlock woolly
was released in Connecticut for control of Adelges tsugae
, the Japanese hemlock woolly adelgid (Grant 1995).
Hemlock woolly adelgid, Adelges tsugae
(Annand), has devastated stands of Eastern hemlock, Tsuga canadensis L.
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.