Why does your Echeveria agavoides Romeo have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely adult fungus gnats, whose larvae thrive in the moist top layer of soil. They feed on organic matter and decaying roots within the Echeveria's substrate, often signaling that the medium is staying too wet.
Fungus gnat populations explode when Echeveria agavoides is watered too frequently, creating a damp environment for eggs to hatch. This moisture also puts the succulent at risk for much more serious rot.
If the potting mix contains too much peat moss or compost, it retains moisture longer and provides a nutrient-rich breeding ground for flies. Echeveria species require highly inorganic, fast-draining gritty mixes.
Your plant might also be experiencing one of these issues:
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