Why does your Cyclamen coum have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The tiny black flies are likely fungus gnat adults, which lay eggs in the moist organic matter of the potting medium. Their larvae feed on the fine root hairs of Cyclamen coum, potentially leading to stunted growth or tuber decay.
Fungus gnat populations explode when Cyclamen coum soil remains consistently wet. For this species, which prefers a drying period between waterings to prevent tuber rot, high moisture levels create the perfect breeding ground for flies.
The presence of decaying leaves or old spent blooms on the surface of the Cyclamen pot provides a nutrient-rich substrate for fly larvae. As these organic materials break down, they attract scavengers like gnats.
English
Italiano
