Sudden Oak Death

Please note: several new species have been added to the list of species affected by Sudden oak Death.
List of Plant Genera Regulated for Phytophthora ramorum (Sudden Oak Death)

This University of California web site has excellent picutures for the identification of the disease:
http://cemarin.ucdavis.edu/symptoms.html

You will find the most up-to-date information and research at the California Oak Mortality Task force website:
http://www.suddenoakdeath.org/

Here two web links offering hope for the organic management of Sudden Oak Death and other tree dieback diseases (increasing soil fertility):

Managing Dieback - Using Phosphite
http://www.calm.wa.gov.au/projects/dieback_phosphite.html
Department of Conservation & Land Management, Western Australia

Screaming Trees
http://www.pesticidefreezone.org/LACITYBEAT.htm