Tiny flies near a plant are often called fungus gnats, but other small flies can appear indoors too. Look at where they gather and seek identification if uncertain.
Check the growing medium
Fungus gnats are associated with damp organic growing media. Review how long the pot stays wet, whether the outlet drains, and whether dead leaves are accumulating on the surface. Correcting an unnecessarily wet environment is often part of management, while still meeting the plant's moisture needs.
Yellow sticky cards can help monitor flying adults, placed where children, pets, and leaves will not become stuck. They are a monitoring aid, not proof that larvae in the mix have been addressed.
Avoid an improvised chemical routine
Do not pour household disinfectant, detergent, or other unapproved mixtures into the pot. If a treatment is needed, choose one labeled for the pest and use location, and follow local guidance and product directions.
Check neighboring containers as well. A single treated pot may be reinfested while another remains wet and full of decaying material. Keep records of adult activity and moisture rather than changing products every few days. The aim is to understand and interrupt the problem, not simply make the visible flies disappear for one afternoon.
Further guidance & source notes
- University of Minnesota Extension: Managing insects on indoor plants
- University of Maryland Extension: Growing media for containers
These are background resources, not an endorsement of this website. Regional instructions and the needs of your plant take priority.