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How the Hemlock Woolly Adelgid threatens the N.C. mountains
In 2010, Cary officials spotted the signs of the adelgid at Hemlock Bluffs Nature Preserve: tiny white spots that resemble cotton balls—the egg sacs—had formed on the needles.
Photo courtesy of the NCSU Dept. of Entomology
Uploaded: Jun 27, 2012 |