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hemlock woolly adelgid – Adelges tsugae

hemlock woolly adelgid - Adelges tsugae

Hemlock woolly adelgid (Adelges tsugae) is a highly destructive invasive insect pest of hemlock trees in both urban and forested environments in eastern North America. Since its introduction more than 50 years ago, this aphid-like pest has caused significant mortality in eastern hemlock (Tsuga canadensis) and Carolina hemlock (T. caroliniana) in North America. A new report in the Journal of Integrated Pest Management shows that a beetle species released into the wild as a natural enemy of the invasive hemlock woolly adelgid appears to be successfully establishing in urban environments in addition to forest settings. (Photo credit: Chris Evans, University of Illinois,

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