SOD Blitz Project

SOD: Bay Laurel Removal

Topic: Selective removal and pruning of California bay laurel (Umbellularia californica) trees as a strategy to protect oaks and tanoaks from SOD infection. Recommendation:  For oaks between 3″ (8cm) and 32″ (80cm) diameter at breast height (DBH), remove small and medium sized bay laurels for a distance of 30ft (10m) around the tree. If large […]

Podcast: Overview of SOD in California 2013

Citizen Scientists: As Good As Gold

  This beautiful mushroom, the rosy bonnet (Mycena rosea), collected and described by amateur mycologist Giovanni Robich, is vouchered in the herbarium of the Museum of Natural History of Venice, Italy. In fact, the entire herbarium is curated by expert volunteers. UC Berkeley, NCBI, and CBS researchers have sequenced a DNA barcode for most species […]

SOD in the Montesclaros Declaration

SOD in the Montesclaros Declaration Complete Montesclaros Declaration   Prepared by a group of more than 70 forest pathologists (representing 17 nations) that attended an international IUFRO meeting held at the Montesclaros Monastery in Cantabria, Spain during May 23th – 27th, 2011.As scientists studying diseases of forest trees, we recognize that the international trade of […]

Nursery-Strain of Sudden Oak Death Found in Sierra Nevada.

A Disease Note in the scientific journal Phytopathology records the first instance of Phytophthora ramorum, the causal agent of Sudden Oak Death, found in the Sierra Nevada foothills of California. The June 2014 article (PDF link) is the first time that the “NA2” lineage of SOD, that is usually only found in commercial nurseries, has […]