Why does your Hippeastrum Desire have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely Fungus Gnat larvae or adults, which thrive in the moist, organic-rich soil preferred by Hippeastrum. The adults lay eggs near the surface, and the larvae feed on decaying organic matter and occasionally fine root hairs of the bulb.
Hippeastrum 'Desire' requires well-draining soil; prolonged wetness creates the perfect breeding ground for fungus gnats. Constant moisture also increases the risk of bulb rot, which provides more food for the larvae.
If the potting medium used for this Amaryllis contains high amounts of peat moss or compost, it provides an ideal nutrient source for gnat larvae. This excess organic decay attracts flies to the pot.
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