History
Risks to Forests
Symptoms and Identification
   On Oak & Tanoak
   On Other Hosts
How P. ramorum is spread
Regulated Hosts

Risks to forests

Because Phytophthora ramorum infects some species of oak, it is considered to be of greatest danger to eastern forests (see below), where oak is one of the dominant species.

In Oregon, the wildland infestation now is limited to a small area in the extreme southwest corner of the state. As infected tanoak trees are found, they are cut, piled, and burned in an attempt to eradicate the disease

 

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