My six plants have begun their second week of flowering and a gnat infestation has recently taken over the area. The gnats used to be a small problem, but now they've multiplied like crazy and their on every plant and everywhere. I can see tons of them coming out from the bottom of my pots and roaming around on the top soil. I already tried hanging a few sticky traps and I've only caught a few...the traps haven't made much of a difference. What should I do? I've heard that placing a layer of sand 1 - 2 inches thick will eliminate the problem. I've also heard that certatin mixuteres of garlic and other household products will work. I saw a bottle of Fox Farms Don't Bug Me Insect Spray and thought about getting that too. Does that work well against gnats? What has worked well for everyone else and their gnat problems? Thanks!