Phytophthora ramorum: an emerging forest pathogen

Abstract

Aided initially by taxon specific PCR primers, we have determined that Phytophthora ramorum, cause of Sudden Oak Death, is not restricted to oaks, but has a host range encompassing at least 11 families and 18 plant species, including dominant tree species such as redwood and Douglas-fir, as well as understory shrubs, and herbaceous plants