Root Natural Area, PA
28, 2004 03:35 PDT
Sweet Root Natural Area is located in the Buchanan State Forest
Bedford County, PA. I visited this site on June 16, 2003. This
is one of
the most depressing old growth sites to visit in PA, given the
90 percent of the old growth hemlocks here (about 40 acres) are
the remaining few living trees show various levels of health due
wooly adelgid. Most of the big trees that died were growing in
soil, among boulders on the steep edges of a stream valley, and
stressful setting may have contributed to their demise. The I
that almost all the surviving hemlocks were growing close to the
and in an area where the stream valley widened and the terrain
more level. Other old growth species I noted here are black
poplar, white and red oak, sugar maple, and a few beech and
Here is the Pennsylvania DCNR page:
Photos by Ernie Ostuno
||Old hemlock rooted in boulder field.
||Old reddish-barked hemlock, this one was still clinging to life.
||A few of the hemlocks have not been defoliated.
||The victims, a stand of ancient hemlocks killed by the HWA.
Hemlock Wooly Agelid
09, 2004 18:00 PDT
This is the same things I was wondering. Will the mortality be
everywhere in the eastern U.S.? I don't know if anyone can
with any certainty. It certainly seems that trees that are
drought or poor growing conditions may be more vulnerable. Last
visited the Sweet Root Natural Area in southern Pennsylvania.
hemlocks growing on the rocky slopes of a ravine were dead from
infestation. However, some of the hemlocks in the flat stream
where soil and moisture conditions appeared more favorable, were
very much alive. The only questions is, were they destined to
the infestation, or just suffer a slower death?