With the increased concern about West Nile Virus, using dry ice as mosquito control around our homes and workplaces can be an effective and environmentally friendly method to control mosquitoes.
Scientists have found that carbon dioxide exhaled from mammals by breathing is what attracts mosquitoes. A five-pound block of dry ice hung near a mosquito trap will simulate the carbon dioxide output of a large mammal in one dusk-to-dawn trapping period.
The dry ice should be hung six to eight feet from the ground at about the same level as the trap. Make sure to follow all dry ice safe handling precautions.