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Fungal Dots on Orchid Bark: Repotting to Prevent Root Rot

Assessment

Tiny fuzzy tan dots are fungi breaking down bark. Not directly harmful but degrade mix, leading to root rot.

Action

Repot in fresh fir bark mix (sift fines, soak). Use plastic pot with drainage. Trim any collapsed roots. Repeat annually. Water weekly, no standing water.

Orchids: Black Dots and Fungus Gnats in Phalaenopsis Pots; Oncidium Mendenhall Struggling in Seattle: Light, Mix, and Cycle; Phalaenopsis Troubles: Old Mix, Overwatering, and Recovery; Rubber Landscape Mulch for Orchids? Not Recommended; White Mold and Webby Growth in Orchid Pots: Overwatering; Best Potting Mix for Moth Orchids: Bark Beats Moss; Choosing the Right Potting Mix for Phalaenopsis; Orchid Potting Mix Pests: Insecticidal Drench & Repot; Watering and Fertilizing Orchids After Bloom: The Fresh Mix Rule; Potting Soil vs. Potting Mix: Which to Use Where

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