For several years I've used this amazing solution successfully in the woods of Louisiana.  I guarantee your mosquito problems will be no more.  Spray liberally on bare skin before going outside.  You'll love the aroma too. 
Ingredients for spray: 90 proof ethanol alcohol, pure mineral water, Patchouli Pogostemom cablin, Vanilla Oeloresin, Cedarwood Juniperus virginiana, Eucalyptus Citriodora (Lemon). * Ecocert** Organic. Keep out of reach of Children.  4 ounces 
For blend only: Patchouli Pogostemom cablin, Vanilla Oeloresin, Cedarwood Juniperus virginiana, Eucalyptus Citriodora (Lemon).