Stemphylium leaf blight (SLB) is caused by the fungal pathogen Stemphylium vesicarium. SLB primarily affects members of the genus Allium, such as onion, garlic, leek, and shallot but other crops can also be affected, such as asparagus, sunflower, parsley, radish, European pear, mango, tomato, and soybean.

2021年12月8日 · Stemphylium leaf blight (SLB), caused by Stemphylium vesicarium, is a foliar disease of onion worldwide, and has recently become an important disease in the northeastern United States and Ontario, Canada. The symptoms begin as small, tan to brown lesions on the leaves that can progress to defoliate plants.

2025年1月30日 · Stemphylium vesicarium (onion leaf blight); Microscopy image of conidia. July 2022.

Onion Stemphylium leaf blight is a fungal disease of alliums caused by Stemphylium vesicarium. It causes oval-shaped, tan or brown lesions on the leaves, which may appear water-soaked and darker when sporulating. These lesions can enlarge …

2021年12月18日 · This datasheet on Stemphylium vesicarium covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Impacts, Prevention/Control, Further Information.

Stemphylium leaf blight (SLB) is an important disease affecting onion (Allium cepa L. and other Allium species) in New York and surrounding regions. The disease causes small, tan to brown lesions on the leaves which rapidly progress to defoliate plants.

Stemphylium blight, is one of the most severe and damaging fungal diseases that affect onions, severely reducing the quality and quantity of both bulb and seed production (Nisha, 2008) [41].

2011年12月15日 · In this study, we investigated the life cycle of the pathogen in terms of seasonal fluctuation of spore dispersal and its relationship with development of disease, formation period of pseudothecia and overwintering of the pathogen based on field surveys, spore trapping and fungal isolation.

2024年10月30日 · Stemphylium vesicarium causes severe damage, particularly to the leaves and seed stalk of onion plants, leading to substantial losses in the onion seed crop.

2023年12月8日 · Stemphylium leaf blight (SLB), caused by the fungus Stemphylium vesicarium, is dominant within the foliar disease complex affecting onion production in New York (NY). The disease causes premature defoliation and significant reductions in bulb weight and quality.