Fungus Gnats on Corn Plant (Massangeana): The Overwatering Connection

Tiny flies on your Dracaena fragrans 'Massangeana'? They're fungus gnats—proof of overwatering and root rot.

Dry the plant ASAP: Let soil dry 3+ days before next watering.
Alcohol spray: Mist flying adults with 70% isopropyl alcohol—kills on contact.
Fix watering: Water only when pot feels light. Empty saucer after 1 hour.

Fungus gnat larvae feed on rotting roots. Drying the soil kills larvae and allows healthy root regeneration. Adults die off without breeding sites.

Expert advice from Darlene, houseplant specialist.

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