logos of forest service and other agencies

Overview. Since the Aspen Delineation Project (ADP) was a partner in the development of Ecology, Biodiversity, Management, and Restoration of Aspen in the Sierra Nevada, a general technical report (RMRS-GTR-178) published by the Rocky Mountain Research Station, it will record and make public all comments on the publication. If you fell significant literature was not reviewed in the synthesis or if you fell there are errors in it, please submit your comment to webmaster@aspensite.org You can review all comments and suggested literature that should have been reviewed below.

Annual Synthesis Updates: As part of the project, the ADP will published an annual addendum to the synthesis summarizing new findings. If you are aware of any journal publication or agency reports that you believe are significant contributions to the Ecology, Biodiversity, Management, and Restoration of Aspen in the Sierra Nevada, please submit them to webmaster@aspensite.org The first annual synthesis update will be published online in December 2007.

Synthesis Comments Received and Literature Reviews Suggested.

John Guyon

US Forest Service

Plant Pathologist

Comments Submitted (12/05/2006):

I just got a copy of "Ecology, Biodiversity, Management, and Restoration of Aspen in the Sierra Nevada". Congratulation on getting this publication out, I'm sure it will help land managers in this area.

I couldn't help but notice that you made mention of Agrilus planipennis in
the publication. Unfortunately, that's emerald ash borer, and unless EAB
has made a huge jump from the Midwest to the Sierra Nevada (and from ash to
aspen), I don't think that was the critter you were looking for. In my
experience, the two main borers found on aspen are poplar borer (Saperda
calcarata
) and bronze poplar borer (Agrilus liragus).

Also, you mention Armillaria root disease, but again I think there is a
problem. In my experience, Armillaria root disease is capable of infecting
aspen, usually when in close proximity to infected conifers, but I've never
seen it kill all the roots of a clone in a root disease center. Also,
Cryptosphaeria canker can kill small stems, but usually only forms narrow
cankers on larger trees. The disease in Figure 3-6 looks like Cytospora
chrysosperma
, which can girdle larger trees when they are under
environmental stress. Additionally, Cytospora canker is the most common
canker disease on aspen, and Crytosphaeria canker rot is actually pretty
rare, found on only about 2% of trees in Colorado, and less and 1% in Utah
and Nevada.

 

Missing Reference--

The following citation was missing from the reference list. It was cited properly several places in the text.

Shepperd, W.D. 1993. The effects of harvesting activities on soil compaction, root damage, and suckering in Colorado Aspen. Western Journal of Applied Forestry 8(2):62-66.