I feel for you. My son is also 14 months old, we also live in the South, and yes, the bugs are atrocious! I have tried every natural thing under the sun and nothing seems to be quite as effective as I need it to be (the best so far, however, is Badger Bug Balm). I refuse to use traditional "chemical" products. Fun outside is best enjoyed in water-- as in, physically immersed in the ocean, or running through some sprinklers which spray pretty decent (bugs can't hack it). If you discover some magic trick (I have tried all the other suggestions listed here at one point or another, and have simply come to the conclusion that the mosquitoes in the south are of a different, hardier breed and there is basically nothing short of a nuclear bomb that can stop them).