First report of rust caused by Coleosporium plumeriae on Plumeria alba in India.
In June 2007, diseased leaves of Plumeria alba found in Umiam, Meghalaya (North East India) were observed having orange-yellow pustules on the lower leaf surface with corresponding small yellowish lesions on the upper surface. No symptoms were observed on either flowers or stems. Both mature and young leaves were equally susceptible to the pathogen and severe infection often resulted in early leaf abscission. Based on the morphological characters, the pathogen was identified as Coleosporium plumeriae [Coleosporium domingense]. This pathogen has been previously mentioned as part of a plant disease survey from Kerala (South India) but it was not fully described. This is thought to be the first report of C. plumeriae on P. alba.