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Leaf Spot in Cranberry

How to identify and treat leaf spot in Cranberry.

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Cranberry care requirements

water
Requires consistently wet to soggy soil; standing water or bog conditions are ideal; 1–2 inches weekly minimum; water year-round
soil
Very acidic, peaty soil (pH 4.0–5.5); must be well-draining yet moisture-retentive; sand and peat mixture works well
light
Full sun (6–8 hours daily); adequate light ensures better fruiting and berry development
symptoms

Symptoms to look for in Cranberry

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

Common causes in Cranberry

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

healing

How to treat leaf spot in Cranberry

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Cranberry

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