I live in Memphis as well. My yard has extensive landscape, foliage, and limited open areas in addition to the pool and a BBQ area. Last year we got bit to death, so for this season I vowed to do something about it. After extensive research and consideration I installed the mosquito misting system. It does use a "pesticide" called Hydropy, a product that is from a flower (pyrtheum) for misting and exterminating mosquitos. I had several companies survey and quote the system to me (yes, it is expensive). In the end, I purchased the hardware and did some sweat equity into the project to reduce cost. My estimate is that I saved around 1300-1500 in labor and profit.
So far it has been in place for almost 3 weeks with no problems at all. It seems to work flawlessly and I haven't experienced anywhere near the problems I had in the past (my kids were eaten alive!). I had tried the candles and other items (sprays mostly) before and had very limited results (not enough results). I didn't want to continue to expose children to consistently having to apply sprays to their skin.
If you can find it in your budget, a misting system is the only way to go!