Why are there so many mosquitos in September?

If temperatures don't cool off at night between warm spells – as was the case this spring – then mosquitoes have ideal conditions to proliferate. Warmer temperatures also increase the number of bacteria found in puddles, which mosquitoes eat. And the warmer the temperature the faster they hatch.



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There is no limit to the number of mosquito bites one of the insects can inflict. A female mosquito will continue to bite and feed on blood until she is full. After they have consumed enough blood, the mosquito will rest for a couple of days (usually between two to three days) before laying her eggs.

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Most mosquito species in the U.S. increase activity from dusk to dawn, which means you're more likely to get bit if you step outside at that time. People who spend time or live near wooded areas, wetlands or shaded places with standing water, a breeding ground for mosquitoes, are at increased risk of bug bites.

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