First report of Curvularia verruculosa causing leaf spot disease of grape (Vitis vinifera) in Afghanistan.
Recently, grapevines at Kunar province of Afghanistan have been found severely affected by a new foliar disease. Small brown spots of different shapes were developed on the leaves, these lesions increased in size (0.5-0.8 cm diameter) and covered the entire field. Based on morphological characteristics, molecular data (sequencing the ITS and the large subunit of the nuclear ribosomal DNA) and pathogenicity, the causal agent was identified as Curvularia verruculosa. This pathogen also caused leaf spot disease on Cynodon sp. This is thought to be the first report of C. verruculosa causing leaf spot on grapes in the Afghanistan.