Fungus Gnats prefer to lay their eggs in damp soil. If pests are present, allow the soil to dry for a few days between waterings. Covering your solid with sand, biochar or with a removable cover between feedings could also stop the Gnats life cycle.
• Yellow Flytraps are useful when catching adult Fungus Gnats. This method will prevent them from travelling from plant to plant and will eliminate the population.
• Beneficial mites that will tackle the eggs and the larvae called: "Stratiolaelaps scimitus". These mites are also beneficial for other bugs such as thrips, aphids, and spider mites.
• Diatomaceous earth
• Additional airflow over soil
* Affected leaves usually do not recover from damage even after correcting the problem.*