I haven't treated the plants themselves at all WH. Only the soil/roots. The gnats have not shown any interest in the vegetative matter. Not one leaf has shown any damage from the bugs far as I can tell. The adults seem to not bother the plants at all, and only live maybe 2 days. I have heard recently that they might be fungus gnats, and present in the FF when we bought it. Might be the case. So I am not really even sure that they are bothering the grow...Unless the larvae are feeding on the root hairs.
Who fuckin knows....
whiskeytango