Is it different to Eucalyptus/Guava (Puccinia psidii) Rust?
Eucalyptus/Guava rust (Puccinia psidii) is not one single species of rust fungus. It is a family of very similar species, each with a slightly different lifestyle. Myrtle Rust is one of these species. Its physical appearance (shape and spore size) distinguishes it from other rusts in the Eucalyptus/Guava rust family. Its full host range in Australia is largely unknown. We must assume that it could have severe impacts on Australian flora and the cut flower, nursery and garden industries. We are therefore taking every measure available to eradicate it as quickly as possible.
