The ERAP West Nile Virus website links to information from government and non-government sources about pesticides registered for use on mosquitoes as repellents, adulticides, and larvicides. The June 2000 issue of Consumer Reports compares effectiveness of several registered mosquito pesticides. This article is written for the lay public and is getting widespread attention. The EPA Biopesticides division has been looking at alternatives to chemical pesticides and provides fact sheets on products such as garlic as well as synthetic organic chemical pesticides. Claims about efficacy and non-target impacts of pesticides and mosquito repellents is controversial.
Issues involved in determining both effectiveness and risk are complex.