Invasive Species Compendium

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Abstract Full Text

First report of Cladosporium colocasiae as a pathogen causing leaf spot disease on taro (Colocasia esculenta) in Iran.


During summer 2013, a new foliar disease was observed on taro (Colocasia esculenta) in tropical areas of Iran, including Hormozgan, where many farmers were alarmed by complete destruction of their taro cultivation. Leaf spots, yellow to dark brown, were subglobose and oval. A fungus was consistently isolated from diseased tissues. Based on the results of morphological observations, sequence analysis of translation elongation factor 1-α gene and pathogenicity test, the fungus was identified as Cladosporium colocasiae. This is thought to be the first report of Cladosporium colocasiae on taro in Iran.