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Leaf Spot in Rhododendron
How to identify and treat leaf spot in Rhododendron.
potted_plant
Rhododendron care requirements
water
Keep soil consistently moist but well-draining; water deeply during dry spells. Avoid both waterlogging and drought stress.
soil
Acidic, well-draining soil (pH 4.5–6.0) rich in organic matter such as peat or leaf mold. Poor drainage causes root problems.
light
Partial shade to dappled sunlight; tolerates full shade but flowers better with some light. Protect from intense afternoon sun, especially in hot climates.
symptoms
Symptoms to look for in Rhododendron
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Rhododendron
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Rhododendron
Remove affected leaves. Apply appropriate fungicide or bactericide.
shield
Preventing leaf spot in Rhododendron
Water at soil level. Improve air circulation. Practise crop rotation.