Fusarium oxysporum f.sp. cepae
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Fusarium oxysporum f.sp. cepae (Hanzawa) W.C. Snyder & H.N. Hansen 1940
causes an important soil-borne disease of onions worldwide. The fungus infects the basal stem plate of the bulb. It also causes damping off on seedlings. The roots turn pink and decay. The bulbs show a pinkish brown rot that becomes covered with whitish mycelia. Leaves turn yellow, wilt and eventually the plant dies. The fungus can survive in the soil for many years as chlamydospores or as a saprophyte on crop residues. It spreads through water and agricultural tools. Management options include resistant cultivars, crop rotation and fungicides.
|• Deutsch:||Fusarium Zwiebelfäule|
|• English:||onion bulb rot|
|• Français:||fusariose de l'oignon|
The page Fusarium oxysporum gives a general overview of the biology of this fungus.