The next line of defense against mosquito populations is larviciding. Once substantial larval numbers are detected, this technique is employed to prevent mosquitoes from emerging and spreading throughout the communities in Morris County. The application of products to control adult mosquitoes is a last resort for the program. When adult mosquito numbers are large, the Commission usually treats entire municipalities with several sprayers at the same time. Treating large tracts in this manner helps reduce adult mosquito problems quickly, but works best in those communities with a substantial network of roads.
Biological control is limited to the introduction of mosquito fish, Gambusia affinis .
Although not widespread, there are a number of small, permanent water habitats where these fish work very well. The Morris County Mosquito Commission is a pleasure to lead. We do important work, and do this work well, providing a service that has a very positive influence on the quality of life for the people who live and work here. The HIV virus that produces AIDS in humans does not develop in mosquitoes. If HIV infected blood is taken up by a mosquito the virus is treated like food and digested along with the blood meal.