Myrtle rust (exotic strains)

Guava rust

Photo: JA Rocabado, PaDIL

  • Over 450 known host plant species, all 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

High priority pest of: Plantation forestry, Production nurseries

Scientific name: Exotic variants of Austropuccinia psidii (taxonomic synonym = Puccinia psidii)
EPPRD Category:
Life Form: Fungus

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol