A fungus, also known as cinnamon fungus or root rot, which attacks the roots of native plants, causing them to die. It is spread by infected dirt, for example on bushwalkers' boots. More information: cinnamon fungus

A fungus that attacks the roots of plants and trees, often causing them to die as they are unable to absorb sufficient water and nutrients through their affected roots

The fungus which causes Crown Rot.

Phytophthora (from Greek phytón, “plant” and phthorá, “destruction, destruction”; “the plant-destroyer”) is a genus of plant-damaging Protisten of the Oomycetes (water moulds). Heinrich Anton de Bary described it for the first time in 1875.