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Leaf Spot in Jostaberry

How to identify and treat leaf spot in Jostaberry.

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Jostaberry care requirements

water
Keep consistently moist during growing season; provide 1–1.5 inches weekly; mulch to retain moisture
soil
Well-draining, fertile soil with pH 6.0–7.0; rich in organic matter; amend with compost at planting
light
Full sun to partial shade (6+ hours daily); tolerates some shade better than currants
symptoms

Symptoms to look for in Jostaberry

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

Common causes in Jostaberry

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

healing

How to treat leaf spot in Jostaberry

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Jostaberry

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