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Leaf Spot in Shiso

How to identify and treat leaf spot in Shiso.

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Shiso care requirements

water
Moderate, consistent moisture; water when soil surface is dry. Tolerates slightly moist conditions but avoid waterlogging.
soil
Well-draining, fertile soil rich in organic matter. Prefers slightly acidic to neutral pH (6.0–7.0).
light
Full sun to partial shade (4–8 hours of sun); performs well in filtered light in hot climates
symptoms

Symptoms to look for in Shiso

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Shiso

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Shiso

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Shiso

Water at soil level. Improve air circulation. Practise crop rotation.