Mosquito Dunks (or other form of BTi) work best for fungus gnats.
Hydrogen Peroxide won't help and may cause harm you weren't expecting. I will be happy when the popularity of using H2O2 on plants fades in oblivion.
MichaelPellow, what are you selling? You are pushing this "dew" thing pretty hard. Plants need water in their root zones, not on their leaves. What is in your "dew?" and why do you think its helping to "dew" instead of watering?
