Local Eradication of Is Effective on Both NA1 and EU1 Lineages in Oregon Tanoak Forests.

Sudden oak death (SOD), caused by the oomycete , has been actively managed in Oregon since its discovery there in 2001. SOD is a devastating disease affecting an ecologically and culturally important tree species in southwestern Oregon. Initially infested with the NA1 lineage, the more virulent EU1 lineage was discovered in 2015.

Novel Introductions and Epidemic Dynamics of the Sudden Oak Death Pathogen in Oregon Forests.

Sudden oak death caused by has been actively managed in Oregon since the early 2000s. To date, this epidemic has been driven mostly by the NA1 clonal lineage of , but an outbreak of the EU1 lineage has recently emerged. Here, we contrast the population dynamics of the NA1 outbreak first reported in 2001 to the outbreak of the EU1 lineage first detected in 2015.