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Sooty Mould in Oleander

How to identify and treat sooty mould in Oleander.

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Oleander care requirements

water
Water moderately during growing season; drought-tolerant once established; reduce in winter
soil
Well-draining sandy or loamy soil; tolerates poor soil quality
light
Full sun (6–8 hours daily); blooms best with intense light
symptoms

Symptoms to look for in Oleander

  • fiber_manual_recordBlack powdery coating on leaves
  • fiber_manual_recordReduced photosynthesis
  • fiber_manual_recordSticky residue beneath black coating
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Common causes in Oleander

Grows on honeydew excreted by aphids, scale, or whitefly. Not a direct plant pathogen.

healing

How to treat sooty mould in Oleander

Treat the underlying pest infestation. Wash mould off leaves with water.

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Preventing sooty mould in Oleander

Control sap-sucking pests. Good air circulation.