Fungus Gnats in Office Plants: Natural Control

Why They're There

Overwatering and/or peat-heavy soil that holds water too long → roots rot → fungus gnats breed in decaying roots.

Natural Elimination

1. Dry out: Let soil dry more between waterings. Gnats disappear as roots recover.
2. Repot with better mix: Next repot, use 2 parts potting soil + 1 part perlite + ¼ part horticultural charcoal. Improves aeration.
3. Scale on Ficus: Flick off with alcohol-dipped cotton swabs.

No Pesticides Needed

Fix the cultural cause (water/soil) and gnats vanish. Safe for office with dogs/toddler.