It's estimated that in this country there are about 40,000 mosquitoes for every person!
Mosquitoes breed in stagnant water and often stay within a mile or two of where they grew up as larvae. If you are experiencing mosquito problems, eliminating nearby breeding sites is a top priority. Carefully search your property and drain or get rid of any standing water.
Here is a starter list of items that often contain water and mosquitoes: planter saucers, buckets, flower vases, tree holes, cisterns, old tires, clogged or sagging roof gutters, and ponds without fish. Even filled birdbaths may have mosquitoes breeding in them, so be sure to change their water weekly.
Keep in mind that mosquito larvae develop quickly. Because some kinds can go from egg to adult in as little as one week in warm weather, these items need to be drained every week if sprinklers or rain refill them.