Pink Root of Onion
Setophoma terrestris
Onionfungal
A warm-soil fungal disease that turns roots pink before they shrivel and die.
Symptoms
Roots turn pink, then shrivel and die, resulting in stunted bulb development.
Favorable conditions
- •Warm soil temperatures
- •Plant stress and continuous allium cropping
Management
- 1Rotate crops
- 2Plant resistant varieties
- 3Solarize soil where practical
- 4Avoid unnecessary plant stress
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