Guava rust; Eucalyptus rust
Puccinia psidii

Guava rust; Eucalyptus rust (Puccinia psidii) is a fungal pathogen of Guava, Eucalyptus, Allspice, Rose Apple, Clove. It is a native of Brazil and was first detected in Florida in 1977.

This rust affects seedlings, young trees, leaves, stems and fruit in trees of the Myrtaceae Family.