While the main focus of the District is larval control, we do have a program designed to reduce flying mosquito populations if they become too much of a nuisance or if there is a risk to public health. Prior to fogging (also known as ‘adulticiding’) in any particular area, we place a trap to verify the presence of a large adult mosquito population.

Follow us on Facebook! We do not fog a lot, but when we do it will be after dusk and will always posted on our Facebook page. Simply enable notifications to be alerted if we plan to fog. 

Standing water of any kind has the potential to produce mosquitoes. Most of the major locations around the District with standing water have already been mapped, recorded and are regularly inspected and treated. We do appreciate being notified of new or unknown mosquito sources.

A frequent source of backyard mosquitoes is ornamental ponds. To combat this common source, we have a dedidcated team of technicians to help homeowners enjoy these water features without steady swarms of mosquitoes. In April, registered homeowners receive a letter notifying them when the season will begin and reminding them to prepare their pond(s), inform us of any changes to their pond(s) or if…

In the heat of the summer, mosquitoes can easily complete their life cycle in under a week making standing water in horse troughs prime mosquito sources. We ask horse owners to be diligent in making sure horse troughs are emptied or cleaned at least once a week. In attempt to help protect horses and minimize mosquitoes we have a dedicated technician who can give advice, information, and/or (at the…

In addition to mosquitoes, the District also controls black flies which can be a nuisance for farmers and ranchers. They bite livestock, especially around eyes, ears and reproductive organs. Like mosquitoes, black fly life begins in water. They however prefer flowing water (whereas mosquitoes need stagnant water) and can be found in canals, ditches, and the Jordan River. They fly erratically and…

The western tree-hole mosquito (Aedes (Jarnellius) sierrensis) is a common mosquito on the eastern bench areas of the Salt Lake Valley. As its name suggests, this mosquito lays its eggs in wet tree holes typically found in older gnarled trees. Tree-hole mosquitoes are aggressive day biters and can be a real nuisance. They also are the primary vectors of dog heartworm.