My building puts out a monthly newsletter, and here is a Living Well tip:
Mosquitos hate Lavender. To keep mosquitos out of your home, add a drop of Lavender Oil to a ribbon and place around open windows.
Add 30 drops of Lavender Oil to 2 Tablespoons of vegetable oil or Olive Oil and rub onto exposed skin. Smells good and stops mosquitos from landing.
This may be a good way to ward off the critters when traveling.