Onion Diseases

By The Old House Web

Onion Diseases


Downy Mildew

Downy mildew causes sudden leaf collapse. The disease is controlled with sprays of copper(0).

Neck Rot

Neck Rot is a storage problem and can be controlled by properly storing only well dried bulbs.

Smut

Smut causes black pustules on the leaves. No chemical control is listed.

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