Onion diseases

Onion — 3 diseases with symptoms, causes and treatment.

• Botrytis leaf blight on onions — symptoms and treatment medium

  Small white oval lesions with light green halos on onion leaves, with tips dying back? Botrytis leaf blight on onions — pictures, causes and treatment.

• Downy mildew on onions — symptoms and treatment high

  Pale oval spots on onion leaves with grayish-purple fuzzy growth and collapsing tips? Downy mildew on onions — pictures, causes and treatment for growers.

• Fusarium basal rot on onions — symptoms and treatment high

  Outer onion leaves yellowing and wilting with pink-white growth and soft rot at the bulb base? Fusarium basal rot on onions — pictures, causes and treatment.