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Gray Blotches on Orchid Flowers: Fungus from Overnight Moisture

Cause & Prevention

Gray blotches = fungal spores from water droplets left on flowers overnight. Spots permanent after 24 hrs. Water/mist mornings only so foliage dries by night. Light air movement helps evaporation.

Orchids: Falling Oriental Poppies: Wind Damage, Not Root Issues; Cymbidium Flower Pests: Sheen, Eaten Edges, Clear Goo, White Deposits—Slugs, Sap, and Scale; Grey Mold on Deflasked Orchid Seedlings: Humidity Management; Eliminating Fungus Gnats from Houseplant Soil; Overwintering Geraniums Indoors: Light, Watering, and Pinching; Identifying Microscopic White Bugs and Webbing on Annuals: Likely Spider Mites; Canterbury Bells, Zinnias, and Long-Lived Indoor Flowers; Ahmedabad's Floral Magic: Express Every Emotion with Flowers; Everlasting Flowers: Growing, Drying, and Designing with Blooms That Last; DIY: Flowers in the House, 9 Ways

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