Mosquitoes
Mosquitoes are more than a summer nuisance. Their bites can itch, swell and, in some cases, spread germs that make people or animals sick.
Use this page to learn why mosquitoes bite, how to reduce bites and how to limit places where mosquitoes breed around your home, school or community space. Prevention starts with simple steps: use EPA-registered insect repellent, wear protective clothing and remove standing water where mosquitoes can lay eggs.
What species can you find in Ohio?

Species: Aedes albopictus
Caution: A common mosquito throughout Ohio, this mosquito was introduced to the United States in the 1980s, possibly through tire imports. The tire cavities are ideal egg laying sites. Asian tiger mosquito adults are commonly found in backyards where they wait in vegetation until they sense a host, such a person, dog, or rat. They are aggressive daytime biters and can be recognized by the striking black and white stripes on their legs and distinctive single white stripe on their back, just behind the head. Notes:
Read more about this pest in the Ohioline fact sheet, Asian Tiger Mosquito.

Species: Aedes triseriatus
Caution: This species is known to transmit the La Crosse encephalitis virus. Ohio routinely reports the highest number of La Crosse cases in the country.
Notes: This mosquito is commonly encountered in the woods. Their young develop in tree holes or man-made containers such as tires.
For more information, visit the Rutgers Center for Vector Biology.

Species: Culex pipiens
Caution: These mosquitoes are known to spread Eastern equine encephalitis virus, St. Louis encephalitis virus, and West Nile virus (WNV).
Notes: The Northern house mosquito can be found in urban, suburban, and rural areas of the state. They prefer to bite birds, but will also happily bite people and dogs.
For more information, read the Northern House Mosquitoes fact sheet on Ohioline.