There are over 2500 different species of mosquitoes throughout the world. 150 of those species occur in the United States, 52 of the 150 are found in California. Out of all public complaints, accounting for over 99%, only eight species make up the general complaint census.
One of the 40 most common species is called the common Malaria Mosquito. These mosquitos are found mostly in the eastern United states, southern range of Canada, and parts of Mexico with the greatest abundance occurring in the southeastern U.S. This species has recently been recognized as a complex of five siblings species. The preferred host being large mammals, such as humans, of course.
By far the largest majority of all the mosquitoes inhabiting North America come from the Culex genus. The Culex genus is the main spreading factor for West Nile virus, filariasis, Japanese encephalitis, St. Louis encephalitis and avian malaria.
The Aedes mosquitoes genus make up almost one half of all North American species of mosquito. There are almost 70 species of Aedes known from the United States of which about 40 are more common than most.
Another main biter in North America is named as the West Nile Mosquito. This tough mosquito has actually caught media attention for its specifically developed tolerance to pyrethroids which is a common agricultural pesticide. With this mosquito being yet another main North American specie seeing the development of such a strong tolerance is a scary discovery. This resistance has been shown previously in Africa and Asia, but this is the first sign in North America. It is said that if the resitance increases even the strongest, most toxic pesticides may prove useless.
Managers for Mosquito and Vector Control agree and have stated that California probably has the best mosquito control in the world. With this state as a basis of operational functionality for other states to mimic, there is hope in the defense against these pests. Even though California is home to more than 1/3 of the United States mosquito specie population, they have the greatest lessons to teach in the control thereof.
Though these pests can be harmful to humans and animals, and though they are growing tolerance to our common means of pesticides, we still have the upper hand through good old fashioned experience. By using different methods and by asking for advice and getting tips from the leaders of eradication we can maintain control and help keep more North American citizens from illness and disease. Together we can do it.