Ooooo those godamn mother$#@*&%$! GNATS!

I feel your pain, had quite a case of them on my last "attempt." Infuriating little bassids... The cure that finally worked for me was the bright yellow sticky traps I got from eco in conjunction with FoxFarm's Don'tBugMe spray. I'd dose the top of the soil as well as the bottom of the pots, where the drain off holes are. If the problem is really bad, a bomb like stinky mentioned might be more in order.

I've found you can increase your odds of avoiding them by not using manure based compost in your soil mix. Eggs can survive the bovine intestinal track, as well as the subsequent curing and packaging of the compost. This time around I used only ProMix for my potting needs, and have yet to see any kind of pest near my *knocks on wood* girls.

Roots are funny things, I'd be careful with unconventional tactics, particularly if you're well into a grow and nearing harvest.


my $0.02....