Since the Outer Banks are small stretches of narrow islands with marshy conditions from the sound on one side, mosquitoes can be a problem. Luckily, Dare County has mosquito trucks that perform routine, drive-by sprayings. This is especially useful in the evenings and after it has rained. These trucks put a serious dent in, what would be, a far worse mosquito problem on the Outer Banks. Mosquitoes are at their worst in warmer temperatures when there is a lot of standing water. This makes Spring and Fall the worst seasons for mosquito breeding on the Outer Banks.