I started putting some mosquito dunks in my RO res, and put up a Hot Shot Strip. I hear those strips are pretty nasty, so I only want to keep it up for 10-15 days or so, figure I'll keep it up for a full life cycle. My plants weren't really ready for water, but I put about 1/2 gallon of dunk treated water in the top layer of soil on each of my 15 gallon pots. Next time they get a full water, they should get a full dose of the dunk larvae killer. I'll let you know if it works. I'm pretty sure my problem is gnats, though I was paranoid about root aphids. I've only seen winged guys and they hang out by my drain holes. I read somewhere that its a common hangout for fungus gnats in house plants. Looking at them close up they are very mosquito like, and not like aphid pics I've seen. I don't seem to have them too bad yet, so I don't think there is any major harm yet, hoping to squash this before it becomes an issue.