About the pest

  • Over 100 known host plant species, mainly from the Myrtaceae family
  • Brown to grey lesions usually surrounded by yellow spores
  • Lesions develop on actively growing leaves, shoots and fruits
  • Severe infections may kill shoot tips or cause leaf distortion
  • Spread with infected plant material or through wind dispersal

More information

Myrtle rust (exotic strains) (Plant Health Australia)

Guava rust (eucalyptus/myrtle) rust (Department of Agriculture)