Animalia > Arthropoda > Insecta > Hemiptera > Phylloxeroidea > Adelgidae > Adelges > Adelges tsugae

Adelges tsugae (Hemlock woolly adelgid)

Wikipedia Abstract

Hemlock woolly adelgid (Adelges tsugae), commonly abbreviated as HWA, is a true bug native to East Asia that feeds by sucking sap from hemlock and spruce trees. In eastern North America, it is a destructive pest that poses a major threat to the eastern hemlock and the Carolina hemlock. The range of Eastern Hemlock extends north of the current range of the adelgid, but there are fears that the adelgid could spread to infect these northern areas as well.
View Wikipedia Record: Adelges tsugae

Invasive Species

Adelges tsugae is a small, aphid-like insect that has become a serious pest of eastern hemlock and Carolina hemlock. The most obvious sign of infestation is the presence of white, woolly egg masses on the underside of hemlock needles. Infested eastern North American hemlocks defoliate prematurely and will eventually die if left untreated. A. tsugae is a difficult insect to control as the white waxy secretion protects it from pesticides. It is dispersed to new habitats through the nursery trade and locally by wind, birds, mammals and humans. Hemlock trees provide important habitats for many wildlife species and A. tsugae has severe adverse ecological impacts which will become more severe as its distribution expands.
View ISSG Record: Adelges tsugae



Species recognized by Favret C, 2013-02-08, in Catalog of Life 2011
Invasive Status provided by Global Invasive Species Database Downloaded on 10 May 2011.
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