Stemphylium vesicarium on garlic and other Allium spp. in Korea.
Over 100 isolates of Stemphylium obtained from leaf blight lesions of garlic, onions and leeks were identified as S. vesicarium based on morphological characteristics. S. botryosum [Pleospora tarda] was previously reported on these plants in the Korea Republic. In controlled inoculations, the pathogen induced disease symptoms on garlic leaves 7 days after inoculation. Onions and leeks were also artificially infected by the fungus. This is the first report of S. vesicarium causing a leaf blight of garlic, onions and leeks in the Korea Republic.