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Phalaenopsis Sunburn: White Bleached Spots Are Permanent

Afternoon Sun Destroys Chlorophyll

White spots with brown rings = sunburn from water droplets focusing afternoon light. Tissue dead, won't recover. Phalaenopsis are houseplants—grow indoors in east window. Morning sun OK. Spots only harmful if they cover large leaf area (lost photosynthesis).

Orchids: White Raised Spots on Ornamentals: Wax Scale Insects; Maple White Spots Under Limbs: Lichens; White Spike on Phalaenopsis: Senescence or Mealybugs?; Plectrelminthus caudatus Leaf Spots: Fungal Management in Humid Conditions; White Spots in Orchid Pot: Perlite, Not Fungus; White Fuzzy Spots in Phalaenopsis Pot: Perlite, Not Pests—And Repotting Rotten Roots; White Spots on Dendrobium Leaves: Boisduval Scale or Mealybugs; White Spots on Phalaenopsis Petals: Mealybug Alert; White Spots on African Violet with Root Rot: Mealybugs or Fungus?; Identifying and Treating Mealybugs or Scale on Staghorn Ferns

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