Why does your Zantedeschia Captain Solo 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 feeding on organic matter and fungal growth in the soil. They thrive in the consistently moist substrate that Zantedeschia species require, as their life cycle depends on high humidity.
Excessive moisture in the Calla Lily pot promotes the growth of fungi and mold, which serves as the primary food source for fungus gnat populations. This can eventually lead to rhizome rot in 'Captain Solo'.
The presence of flies often indicates that there is decomposing organic matter or surface mold present on the top layer of the potting mix. These fungi are the biological trigger for the egg-laying process of many small dipterans.
Your plant might also be experiencing one of these issues:
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