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Wescott Nature Preserve
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Eastern Hemlock (Tsuga canadensis).  The Wescott Nature Preserve is one of the few places in the county that exhibits a stately stand of hemlock trees.  The Woolly Adelgid (Adelges tsugae), a small insect introduced from Asia, has damaged hemlocks in North America.  Studies have been done on the trees at the Wescott Nature Preserve to help discover solutions to this invasive pest, including releasing a control beetle (Sasajiscymnus tsugae) that eats the adelgid.

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Photographs by Valerie Lykes and Janine Ngai