Eucalyptus rust, guava rust
Puccinia psidii Winter
South America, mainly east of the Andes, including northern-most Argentina, Uruguay, Paraguay, Brazil, Venezuela, Ecuador and Columbia. Also present in Central America and the Caribbean, including Cuba, Dominican Republic, Jamaica, Puerto Rico, Trinidad and Florida (Coutinho et al. 1998). This fungus is not known to occur in Africa, Australasia, Oceania or Asia and must be regarded as a dangerous exotic pathogen in countries where Eucalyptus and other Myrtaceae are grown or constitute native vegetation.
All genera within the family Myrtaceae are potentially susceptible to this rust, but information on the host range is...