Why does your Anthurium andraeanum Fiorino have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely the adult stage of fungus gnats, which breed in the moist organic matter of Anthurium potting soil. Their larvae feed on decaying roots and organic material, potentially causing secondary root damage in your Fiorino.
Fungus gnat populations explode when Anthurium substrate remains saturated for too long. Constant moisture prevents the medium from aerating, creating the perfect breeding ground for fly larvae.
If your Fiorino is planted in a heavy peat-based mix that has begun to break down, it provides an ideal food source for the larvae of black flies. The decomposition process releases gases and nutrients that attract these insects.
Your plant might also be experiencing one of these issues:
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