An army of citizen-scientists is being enlisted to help map outbreaks of the Sudden Oak Death fungus killing trees on the California coast and to perhaps control it.

A dramatic increase this year in the number of oaks, manzanita and native plants infected by the tree-killing disease known as sudden oak death likely helped spread the massive fires that raged ...

The deadly pathogen known as sudden oak death is spreading throughout the Bay Area, infecting more trees in more places than have ever been seen before, according to scientists tracking the ...

Spurred on by two rainy years, the spread of sudden oak death in Marin and 18 California counties is back on the rise — this time with an aggressive new strain invading the Bay Area. Until ...

Have you got an oak in your backyard? Then you may want to know how much longer it’s likely to escape the scourge that is steadily wiping out California’s signature trees. The University of California ...

From now through the end of December is the time of year to inspect your trees for Sudden Oak Death. The mold pathogen that causes Sudden Oak Death, phytophthora ramorum, is most active during wet ...

The presence of sudden oak death in the type of trees most likely to spread the disease, California bay laurels, increased in Marin over the last year despite the state’s ongoing drought, says a ...

New areas ripe for infection with sudden oak death have been identified in Marin County despite drier conditions that have helped check the spread of the disease statewide, according to a new ...

Survey Information Sudden Oak Death (Phytophthora ramorum) is a pathogen of many different horticultural and native plants. It has been found in the coastal regions of the US. Its infection causes ...