Nattrassia mangiferae, the Cause of Die-Back and Trunk Cankers of Ficus religiosa and Branch Wilt of Psidium guajava in Iran

In 2000, in the Jiroft region, south-eastern Iran, a fungus subsequently identified as Nattrassia mangiferae was isolated from both Ficus religiosa, which showed branch die-back and elongated cankers in trunks, and Psidium guajava (guava) trees, which showed branch die-back. The pathogenicity of the fungus was demonstrated by fulfillingKoch’s postulates. These diseases are a potential threat to the citrus industry and P. guajava production in the region. This is the first report of N. mangiferae incitingdie-ba ck and trunk cankers on F. religiosa and die-back on P. guajava.