Mosquitoes are the most deadly creature on the planet, killing 725,000 people per year. More than every other creature combined (source).
The young and old are far more susceptible to insect transmitted diseases and need additional precautions and protection when outside.
Cases of tick borne diseases have over tripled since 2004. Check out this map of tick borne disease reports from 2016.
Minnesota summers are short. Spend them outside without worrying about slapping mosquitoes or fear of diseases.