A REVIEW: STEMPHYLIUM BLIGHT OF ONION-THE PATHOGEN, THE DISEASE, CURRENT STATUS AND DIFFERENT METHODS OF DISEASE MANAGEMENT
Crop Improvement
If you grow onions at home or rely on them in the kitchen, a single season of Stemphylium blight can wipe out an entire crop — and understanding its lifecycle is the first step to stopping it before it starts.
Onions are one of the world's most important vegetables, packed with vitamins, minerals, and even natural compounds that fight inflammation and cancer. But a fungal disease called Stemphylium blight can devastate onion crops, destroying both the edible bulbs and the seeds needed to grow the next season. This article reviews everything scientists know so far about the fungus behind this disease and the best ways to control it.
Key Findings
Stemphylium blight is identified as the single most serious fungal disease of onion, limiting both bulb quality and seed production.
Onion contains natural antimicrobial compounds — including a lachrymatory agent with fungicidal, bactericidal, and nematocidal properties — yet remains highly vulnerable to this specific pathogen.
Onion (Allium cepa L., 2n=16) is attacked by a broad range of pathogens including fungi, bacteria, viruses, nematodes, and abiotic stressors, making integrated disease management essential.
chevron_right Technical Summary
Stemphylium blight, caused by a fungal pathogen, is the most damaging disease of onion crops worldwide, threatening both bulb yield and seed quality. This review compiles what is known about the pathogen, how the disease spreads, and the management strategies available to growers.
Abstract Preview
Introduction Onion (Allium cepa L. 2n=16) is one of the most important and familiar crop throughout the world that belongs to the family Alliaceae. It is also used as a common spice, salad and vege...
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