Why does your Pteris fauriei have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The larvae of these flies live in the upper layers of the potting medium, feeding on organic matter and decaying roots. For a moisture-loving fern like Pteris fauriei, overly damp soil provides the perfect breeding ground for their life cycle.
While less common as flying pests in ferns, certain aphid species can appear as tiny dark moving dots on the underside of fronds. They feed on the sap of the Pteris fauriei, which can lead to leaf curling and yellowing.
Small dark beetles may be attracted to the high humidity and decaying plant material in a fern's pot. They can occasionally migrate to the plant itself looking for moisture or organic nutrients.
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