Why does your Freesia Texas 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 matter used in Freesia potting mixes. Their larvae feed on organic debris and can damage the delicate fine roots of your Freesia 'Texas', hindering nutrient uptake.
Frequent watering of Freesia 'Texas' keeps the top layer of soil perpetually damp, creating an ideal breeding ground for moisture-loving insects. This excess moisture can also lead to fungal pathogens that attract scavengers.
As high-nitrogen fertilizers or compost break down in the pot, they release gases and nutrients that attract flies to the surface. In a Freesia, this often coincides with the plant's active growth phase when feeding is most frequent.
Your plant might also be experiencing one of these issues:
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