Why does your Hyacinthus orientalis Anna Lisa have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely fungus gnats, whose larvae live in the organic matter of the soil and feed on decaying plant roots or fungal mycelium. In Hyacinths, high moisture levels required for bulb growth often create the perfect breeding ground for these pests.
While Hyacinths need moisture to bloom, overly wet soil promotes the growth of fungi that attract fungus gnats and can lead to bulb rot. The presence of flies is often a secondary symptom of an environment that is too damp.
If there is uncomposted potting mix or decaying leaf litter in the Hyacinth pot, it provides a food source for the larvae of small flies. This organic decay attracts pests that can eventually damage the delicate bulb structure.
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