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Pests
Spider Mites on Orchid Leaves
Commonly affects: Phalaenopsis spp. and other Orchidaceae (Orchid)
Fine yellow stippling spreads across leaves, with fine webbing visible in heavier infestations, especially in dry indoor air.
Potential Causes
- 1Low humidity and warm, dry indoor conditions favouring mite reproduction
- 2Dusty leaves providing a hospitable surface
- 3Stressed or drought-affected plants being more vulnerable
Solution Steps
- 1Rinse the plant thoroughly under lukewarm running water to dislodge mites and eggs
- 2Apply insecticidal soap or neem oil, repeating every 5-7 days
- 3Increase humidity around the plant, since mites struggle above 60% relative humidity
- 4Isolate affected plants from other orchids until cleared
Prevention Tip
Orchids kept in dry, centrally-heated rooms are especially prone to spider mites â a regular humidity boost helps prevent infestations.
