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Common Scab
Plant disease guide · TerraceFarming
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What causes Common Scab?
Caused by the bacterium Streptomyces scabies, leading to rough, corky lesions on tuber surfaces, especially in neutral to alkaline soils.
How to treat Common Scab
Maintain soil moisture consistently during tuber initiation and bulking. Incorporate organic matter like compost to improve soil health and microbial activity.
How to prevent Common Scab
Maintain soil pH between 5.0-6.5, as slightly acidic conditions limit scab development. Plant resistant varieties and practice crop rotation.
Crops commonly affected
Related questions
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