Why does your Colocasia esculenta have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.
The larvae of these flies live in the soil and feed on organic matter and fine root hairs. In Colocasia, high moisture levels required for taro cultivation create a perfect breeding ground for their life cycle.
Decaying organic matter or old taro corms in the soil can attract various tiny flies. These flies are not feeding on the plant itself but are attracted to the fungal growth triggered by overly wet substrate.
While similar to fungus gnats, an extreme excess of water in Taro pots leads to anaerobic conditions that favor specific Sciarid species. These flies thrive when the Colocasia substrate remains saturated for extended periods.
Your plant might also be experiencing one of these issues:
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