Hi all--I'm new to this board and hope you don't mind me sharing something I recently discovered. I own a farm upstate where I grow patchouli herb plants from seeds.Lately the plants have been besieged by fungus gnats whose larvae eat the root system,killing the plants.Patchouli seeds are rare in the trade and I needed to do some serious defensive treatment.I've never had this problem before and couldn't find anything that would get rid of them.Some time ago I've heard about a pesticide called Gnatrol but the manufacturer stopped producing it in liquid form and recently created Gnatrol in granular form. Apparantly it contains bacteria that seeks out and eats the gnat larvae. I ordered some to test it and will let you all know the results. Thanks for having me.