Quote Originally Posted by Storm Crow
They are not too good for seedlings, but relatively harmless to mature plants. Put up your sticky trap and cover the surface of your soil with foil. If you have HPS or MH lamps be sure it's dull side up- with my CFLS and fluoros, I put it shiny side up. It seems that the gnats get confused when light comes from both "up" and "down" and they are busy looking for dark dirt to lay their eggs in. Their poor little brains can't handle light from 2 directions! They are more of a nuisance than a problem. - Granny:hippy:
Darn, that was new a bag of soil that I had gotten too. I have a zipper bag. That really sucks!

Hope my idea works(put that fly sticky trap inside the soil bag, then zip it up and wait for a week or so then hopefully they are all dead :thumbsup.

Thanks for postin.
JohnHerer Reviewed by JohnHerer on . What are these small looking flies? I opened my bag of soil and I saw some small flies, I first thought that they were ants, but they weren't. Should I put a fly catcher in my closet thats where I am currently growing? Its that sticky tap catcher thingy. Aeroxon Fly Catcher Ribbon - Dover Saddlery Like this above. Rating: 5