Resumen
- Phytophthora ramorum, the causal agent of sudden oak death (SOD) is a quarantine pathogen that has forced the implementation of extraordinary measures to track and contain the movement of infected nursery stock both within and outside of the three western states of California, Oregon and Washington. Federal guidelines in the United States for diagnostic testing of P. ramorum are in place to insure the sensitivity and reliability of detection tests. PCR assays are used to determine whether the Phytophthora sp. detected by the initial immunoassay screening is P. ramorum