Why does your Cymbidium bicolor have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyThe larvae of these flies live in the organic matter of the potting medium, feeding on decaying roots and fungi. They are attracted to the consistently moist substrate often used for Cymbidium bicolor.
Similar to fungus gnats, these flies thrive in high-humidity environments like those required by Cymbidium bicolor. They target the moist, decomposing peat or bark used in orchid potting mixes.
Tiny black flies may be attracted to decaying orchid foliage or old, decomposed bark in the pot. As the medium breaks down, it creates a micro-ecosystem of rot that attracts various small dipterans.
Your plant might also be experiencing one of these issues:
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