Jimdamick
Well-Known Member
I used to grow soil indoors & found it to be to be a real pain in the ass, so I converted to a RDWC system years ago but still use germination mix to start my plants, which allows the gnats to develop.I built a shelter on the back deck last fall, put a heater and a spare light in it to finish off an outdoor plant as a bit of a project. Once they go out they never come back inside and it was trimmed on the back deck and dried there too. The plant was for a buddy and he took care of it outside and never came near the inside grow after either! I don't use pesticides, I use precautions instead.
I bought a bag of soil years ago that was infected with gnats & they have never left my room, every grow they still fly around, so I gave up dealing with them (they really are harmless, just annoying)
Anyway, my point is that even using only a limited amount of soil allows fungus gnats too survive, even in a pure hydro situation.
The little fuckers are tough, but really only effect small weak plants at their stem/root system, but that's life in the growing pot world.