Large numbers of biting or stinging vectors in many recreational areas, which often drastically curtail their use by sensitive individuals who help pay for such facilities. Secondary infections which often result from the bites and stings of vectors. Some species of mosquitoes are involved in the transmission of important human diseases. Encephalitis, malaria, yellow fever, dengue, and filariasis are transmitted to man and animals in various regions of the world through the bite of the mosquito. Secondary infections can result from scratching mosquito bites even when no disease agent is transmitted.
Some people exhibit an allergic reaction to mosquito bites.
The primary goal of the District is to control mosquitoes by preventing them from breeding. Although this is more time consuming, more difficult to accomplish, and more costly over a short time span than other control methods, a preventative program will be more cost-effective to the District over the years. The District is involved in reviewing and making recommendations on environmental impact reports that will prevent the breeding of mosquitoes and other vectors before they are built as permanent treatment problems. The removal of debris and non-protected vegetation will decrease water retention, thus eliminating or reducing mosquito breeding. Another important aspect of prevention is education of the residents through contact with field staff.