Are there any P. ramorum-resistant coast live oaks or tanoaks commercially available?

Research has identified coast live oak individuals that may be somewhat resistant to SOD, possibly because of the presence of some chemicals in the bark and phloem.  However, there is no information yet on how genetics and the environment may affect this trait. Tanoak has some mother trees that produce SOD-tolerant seedlings and some that […]

What are the revised SOD treatment recommendations that were released in June 2015?

The revised SOD treatment recommendations can be found at:  https://nature.berkeley.edu/garbelottowp/?p=1039.

Can coast live oak be used in a large-scale Bay Area tree planting project without exacerbating SOD?

Question: My organization is considering launching a large-scale urban tree planting project in the Bay Area, with the goal of adding one million trees to the urban forest inventory within 15 years. We are interested in coast live oak (CLO) as a major component of the effort for a number of reasons, including the ease […]

Were the initial outplantings of P. ramorum-infested plants ever traced back to a source nursery?

Phytophthora ramorum was not discovered as the causal agent of sudden oak death until 2000-2001.  Prior to then, it was not understood to be a nursery issue; therefore, there was no concern about spread from nurseries into the wildlands.  Since then, DNA analysis has confirmed that the pathogen was unknowingly introduced to both California and […]

Can the Garbelotto lab analyze wood chips for pathogens?

The lab can, upon request, analyze wood chips at cost ($90 US dollars per sample).  Testing would confirm the presence or absence of any known dangerous pathogens.

Sampler Drones for Forestry Reseach

The Forest Mycology and Pathology Lab at UC Berkeley has developed a new method for sampling forest canopies. The Sampler Drone is a modified DJI Phantom 2 Vision quadcopter that is lightweight, compact, and exceptionally agile. The Sampler Drone uses GPS positioning and gyroscopic axis stabilization to provide a stable aerial platform for collection of […]

Review Article – Invasions by Forest Pathogens

Molecular analysis to study invasions by forest pathogens: examples from Mediterranean ecosystems Journal Article Biological invasions by exotic plant pathogens in Mediterranean ecosystems are characterized using molecular analysis.

Heterobasidion: A Disposition of Two North American Species

What’s in a name? Two of the most serious wood pathogens of conifers worldwide have been renamed by U.C. Berkeley and US Forest Service scientists. Because of the significant economic and scientific importance of these organisms, and because one of them was introduced in Europe by US soldiers during World War II, this is a […]

Quarantine Alert – Heterobasidion irregulare

The U.C. Berkeley Forest Pathology Lab directed by Matteo Garbelotto and the Gonthier Lab at the University of Turin, Italy, have jointly discovered the US military transported H. irregulare from North America to Italy in 1944, and have spearheaded most of the research on its invasion process. In October 2013, thanks to their efforts, Heterobasidion […]

SOD Disease Maps

Share