Eucalyptus rust caused by <i>Puccinia psidii</i> and the threat it poses to Australia¹

Abstract

Puccinia psidii , which causes the disease Eucalyptus rust, poses a threat to biodiversity in Australia and the Eucalyptus forest industry worldwide. It is native to South America and Central America and has spread to North America (Mexico, USA – Florida). In mid‐2005, the rust was reported in Hawaii, USA, which means it is now present in the Pacific region.