First Report of Marginal Scorch Infecting Indigowoad Root in China

During 2015, marginal scorch symptoms were detected in the productionbase of indigowoad rootin Hubei, China. On the basis of morphologicalfeatures and 18S rDNA sequences, the pathogen was identified as Cladosporium sp. Koch’s postulates werefulfilled by pathogenicity tests on potted indigowoad root seedlings. To ourknowledge, this report is the first of marginal scorch on indigowoadroot caused by Cladosporium sp. We propose the name “marginalscorch” for the new disease.