Diseases caused by Phytophthora:
Port Orford Cedar Root Disease
Phytophthora Diseases in Minnesota
Disease cycle for Phytophthora and other good information
Littleleaf Disease (this is a comprehensive paper - read for general information)
Phytophthora dieback of jarrah and other Australian trees
Lab -See short video: Phytophthora showing sporangia and zoospores