Heml. Woolly Adelgid : Invasive Animals : Exotic Species - Mega Net

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Frederick News-Post - Hemlock Wooly Adelgid

Find a description of the exotic insect pest and learn about its life cycle, control, and ecological impact.

http://www.netstorm.net/~gene/HemlockWoolyAdelgid.htm

Virginia Cooperative Extension - Hemlock Woolly Adelgid

Imported insect causes host trees to drop their needles. Learn about the pest's life cycle and find control methods.

http://www.ext.vt.edu/departments/entomology/factsheets/hewoadel.html