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Disease
Threatens
Hemlocks
Most of the eastern hemlock trees in Shenandoah National Park and surrounding areas are unhealthy and dying because of an infestation from a sap-sucking insect, the hemlock woolly adelgid.
With their lacy needle-covered branches, eastern hemlocks often form thick stands. The insects could cause the loss of many, perhaps all, of these trees in the Park and surrounding Blue Ridge, including Rappahannock County.
Loss of these trees would have sweeping consequences because of the changes in the composition of the many plants and animals associated with the eastern hemlock. Not the least would be a reduction in recreational and aesthetic values.
The'hemlo«fc wooly adelgid feeds at the base of the needles and twigs of the eastern hemlock, withdrawing plant fluids. This can lead to needle loss and reduced growth. Severe damage, including tree death, is more likely if the insect population is high or if the tree is already stressed
See Hemlock, Page A-8
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