Public Health

Pest Management

Why Mosquitoes Are a Concern

The mosquito is the most deadly animal in the world. Every year mosquitoes transmit hundreds of millions of infections and kill an estimated 725,000 people.

Mosquitoes are most active in the United States from June through September. However, they will emerge as soon as the temperature is consistently above 55⁰ F. In Indiana, there are approximately 55 species of mosquitos that have been identified.

Mosquitoes can transmit disease to humans through bites. Read below to learn more about mosquito-borne diseases and how you can prevent them.

Mosquito-Borne Diseases

General Prevention Tips

Mosquitoes breed in sources of standing and stagnant water. To best protect yourself, eliminate breeding sites and avoid mosquito bites by:

  • Emptying and removing containers that are unintentionally collecting water.
  • Storing flower pots, buckets, and containers upside-down.
  • Using mosquito dunks in rain barrels.
  • Changing water in pet dishes and bird baths once a week.
  • Ensuring window screens and door screens are present and in good repair.
  • Wearing long sleeves, long pants, and socks.
  • Using repellents that contain lemon eucalyptus oil, DEET, picaridin, or IR3535. Use these products as directed by the manufacturer.
  • Staying indoors at sunrise, sunset, and early in the evening when mosquitoes are most active, especially if there is a mosquito-borne disease warning in effect.
  • Aerating ornamental ponds or stock them with fish.
  • Keeping grass mowed.
  • Keeping gutters cleaned.
  • Being aware that mosquitos will be present in woodlands, near natural and man-made ponds and lakes, and near unaerated basins of water.
General Mosquito Resources