Forest damage and death from an insect pest - Stock Image

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The invasive and exotic pest species, the hemlock woolly adelgid, is decimating forests in the United States and killing eastern hemlock (Tsuga canadensis) trees. This image shows the environmental damage caused by this aphid-like insect and the death of canopy trees. Image taken in 2009, in the Smoky Mountains of North Carolina. Image is a good environmental, forest health, and biological education image that illustrates the economic and biological costs and damages that are occurring to native species from exotic/introduced pests.
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