Onion white rot

White rot is a serious fungal disease of onions, garlic and leeks causing yellowed, wilting foliage and decay of the roots and bulb. It may persist in the soil for many years.

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Onion white rot

Quick facts

Common name Onion white rot
Scientific name Stromatinia cepivora (syn. Sclerotium cepivorum)
Plants affected Onions, garlic, leeks and other alliums
Main symptoms Yellow and wilting foliage, decay of roots and the base of the bulb
Caused by Fungus
Timing Mid-summer until early autumn

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