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Clubroot in Bok Choy

How to identify and treat clubroot in Bok Choy.

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Bok Choy care requirements

water
Keep soil evenly moist, providing 1–1.5 inches per week. Water consistently to prevent stress and bolting. Drip irrigation works well. Avoid waterlogging, which causes root issues.
soil
Rich, well-draining soil with pH 6.0–7.5. Incorporate 2–3 inches of compost or aged manure before planting. Bok choy appreciates fertile soil for optimal growth and tender leaves.
light
Full sun to partial shade; 6–8 hours of direct sunlight daily. Light afternoon shade in hot climates prevents bolting. Insufficient light slows growth and reduces vigor.
symptoms

Symptoms to look for in Bok Choy

  • fiber_manual_recordSwollen, distorted roots
  • fiber_manual_recordWilting in warm weather
  • fiber_manual_recordStunted, yellowing plants
help

Common causes in Bok Choy

Caused by Plasmodiophora brassicae. Persists in soil for 20+ years. Favoured by acidic, wet soils.

healing

How to treat clubroot in Bok Choy

No chemical cure. Remove all affected plants and roots. Lime soil to raise pH above 7.2.

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Preventing clubroot in Bok Choy

Crop rotation (7+ years). Liming soil. Resistant varieties. Good drainage.