Fungus Gnats from Contaminated Potting Soil

New bag of Miracle-Gro African Violet soil released flying black insects (likely fungus gnats). Owner suspects low-quality soil.

Immediate Actions

1. Discard remaining soil from that bag.
2. Buy Safer Soap or similar insecticidal soap at a local garden center (not chain store).
3. Water properly: wet soil attracts gnats.

Proper Watering for Violets

• Water from below: set pot in saucer of water until top moist.
• Let dry until pot feels light.
• Check every 3–10 days – no fixed schedule.

Why This Happens

Non-sterile soil contains gnat larvae. Overwatering and organic matter decay feed them. Sterile, peat-based mixes prevent this.