Is There Mosquitoes in Arizona?
WouterSeveral species of mosquitoes inhabit Arizona, but there are only six or seven that are of particular concern as disease spreaders. Many of them spend their entire life within a few miles of where they were hatched.
Culex mosquitoes are the primary vector of West Nile Virus. They also carry St. Louis encephalitis, an infection that is transmitted to humans. Among other diseases, they can transmit malaria, dengue fever, and yellow fever.
These mosquitoes are not native to the desert Southwest, but have moved in as a result of human habitat. They live in close contact with human habitations and depend on human foods for their food source. They are capable of flying a short distance, ranging as far as half a mile.
Female mosquitoes lay their eggs near water. These eggs can survive in dry conditions for several months. It is important to drain standing water and other items that collect moisture in the yard regularly.
Another mosquito that is a threat to the environment is the dark ricefield mosquito. These insects breed in damp soil after heavy rains. They are sometimes referred to as floodwater mosquitoes.
Adult mosquitoes are found in vegetation, barns, culverts, and ground burrows. Their mouthparts are covered with a white band. Their legs are long and dangle when they move.
They are most active in the morning and dusk. They feed on nectar from plants. They use special mouthparts to pierce the skin. When they feed, they inject saliva which triggers an immune response. This response causes itching and other reactions.
