Tanoak Mortality (IMAGE) University of California - Berkeley Caption Sudden Oak Death is causing extensive tanoak and oak mortality in the Big Sur region. Credit Matteo Garbelotto, U.C. Berkeley photo Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.