Quote Originally Posted by PyNapLe
is there anything i can use to kill these bugs in the root zone??
I can't say for sure on DWC type grows. I hand water, but I've added 30ml of pyrethins (sp)concentrate per gal of water and it kills gnats etc... with no harm to plants as it's a natural insecticide from flowers.

I haven't done your type of grow method but I can assure you this will kill them. I added once a week for 4 weeks (depending on the life cycle of the bug you're killing) to be sure no larvae can hatch.