Why does your Anthurium andraeanum Bianco have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The most common cause of tiny black flies in Anthuriums is fungus gnats, whose larvae thrive in the moist, organic-rich potting media used for these tropical plants. They feed on decaying organic matter and can damage delicate Anthurium root hairs.
Anthurium andraeanum requires well-draining media; however, leaving the substrate constantly saturated creates a breeding ground for moisture-loving flies. This environment also increases the risk of Pythium or Phytophthora root rot.
If there is a layer of decomposing peat moss or old bark on top of the Anthurium's soil, it provides an ideal food source for fly larvae. These flies are attracted to the nitrogen-rich breakdown of organic components in the pot.
Your plant might also be experiencing one of these issues:
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