Young Jarrah (Eucalyptus marginata) in western Australia; slide by S.R. Shea.

Photo of Zanthoraceae pressii which is susceptible to Phytophthora cinnamomi and therefore spreads the disease.

Eucalyptus marginata killed by P. cinnamomi, n.b. Zanthoraceae pressii, dead & alive in centre of photo.

Dead Eucalyptus marginata (jarrah) on coast in western Australia due to Phytophthora cinnamomi; photo by S.R. Shea

Typical dieback in jarrah due to Phytphthora cinnamomi; photo by S. R. Shea.

Killed forest of Jarrah from Phytophthora cinnamomi; photo by S.R. Shea.

Eucalyptus calophylla, alive but remaining forest of Jarrah killed by Phytophthora cinnamomi; Photo: S.R. Shea.

Nature reserve on coastal plain in western Australia; vegetation largely killed by Phytophthora cinnammomi; Photo: S.R. Shea.

Mycelium of Phytophthora cinnamomi (x100).

Mycelium and sporangia of Phytopphthora cinnamomi (x400).