Why does your Anthurium andraeanum Dorado 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 thrive in the moist, organic-rich potting media preferred by Anthuriums. Their larvae live in the top layer of soil and feed on decaying organic matter and occasionally fine root hairs.
Constant moisture in the Anthurium substrate provides the perfect breeding ground for fungus gnat larvae. High humidity and wet topsoil prevent the upper layer from drying out, attracting flies to lay eggs.
Decomposing peat moss or old bark in the Anthurium pot serves as a primary food source for the larvae. As organic components break down, they create a nutrient-rich environment that attracts these pests.
Your plant might also be experiencing one of these issues:
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