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Leaf Spot in Gunnera

How to identify and treat leaf spot in Gunnera.

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Gunnera care requirements

water
High moisture requirement; keep soil consistently wet or boggy. Plant beside water features or in low-lying areas
soil
Rich, moisture-retentive soil with high organic matter content; thrives in boggy conditions
light
Partial shade to dappled sunlight; protection from harsh afternoon sun prevents leaf scorching
symptoms

Symptoms to look for in Gunnera

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

Common causes in Gunnera

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

healing

How to treat leaf spot in Gunnera

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Gunnera

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