Why does your Anthurium andraeanum California have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely fungus gnat adults, which lay eggs in moist organic matter. Their larvae live in the potting medium of Anthuriums and feed on decaying roots and fungal mycelium.
Fungus gnat populations explode when the Anthurium's substrate remains saturated for too long. This environment also promotes root rot, which provides a food source for the larvae.
If the Anthurium's potting mix contains a high amount of peat moss or bark that is decomposing, it creates an ideal breeding ground for flies.
Your plant might also be experiencing one of these issues:
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