Cache Mosquito Abatement District (CMAD)


Abatement activities began in early May. Larvicide (chemicals that target only mosquito larva) is being applied to areas of standing water when mosquito larva are found. Fogging to control adult mosquitoes began June 11th. Please call (435) 764-6839 to report mosquito problems.

We use GIS (Geographic Information System) to track where we find mosquito larva, what compound we use to treat the standing water, and to record the results when we check back (larval growth stopped, larva dead, etc.). All of our foggers are equipped with a GPS chip to not only track our route but to also gather information on the application rate, speed of the vehicle, and to stop fogging when we reach those properties that have requested no spraying (fogging). The foggers are calibrated to deliver a consistent droplet size at various travel speeds up to 20 mph. All of our workers are licensed by UDAF (Utah Department of Agriculture and Food) to apply pesticides.

WNV found in CMAD Mosquitoes

Mosquito pools from Wellsville, Mendon, Hyrum, and Benson (trapped on August 14th) tested positive for West Nile Virus. WNV was also confirmed in Logan and numerous areas throughout the state (Box Elder, Davis, Magna, Salt Lake area, Tooele, Uintah, and Weber). This is the peak period for WNV so please wear long-sleeved shirts and pants and use an approved insect repellant when outdoors between dusk and dawn when the Culex mosquitoes are active. Fight the Bite!

Seven human cases of WNV have been confirmed. Of the seven, four are the more serious neuroinvasive type. One person has died. The Utah Department of Health Bureau of Epidemiology provides information on WNV for the general public, media, medical personnel, and others. Click here for a fact sheet on WNV in Utah.

Fogging Schedule

Due to the warm temperatures, fogging will continue for the next few weeks.

  • Monday: Petersboro, SW Smithfield, Benson, Nibley, Millville, Amalga Barrens
  • Tuesday: Mendon, Lewiston, Hyrum, Avon, Smithfield
  • Wednesday: Wellsville sewer ponds/Heritage Center/Gun Range, Benson, Providence, Hyde Park, North Logan, Newton, Cache Junction
  • Thursday: Wellsville, Mt. Sterling, Trenton, Cornish, Richmond, Cove, NW Smithfield, Clarkston
  • Friday: Hyrum, Wellsville, Mendon

Courtesy No-Spray Requests

When possible, the District will try to honor courtesy no-spray requests. Please submit a request in writing in order for us to plan routes and accommodate no spray requests. Click here to read this policy. Click here to obtain the fillable form to complete and submit to CMAD. The request must be submitted EACH year.

If you live in Logan or College-Young Ward, please contact your local abatement personnel, NOT Cache Mosquito Abatement District, for fogging schedules, no spray requests, etc. For Logan, contact Rex Davis at (435) 716-9749. For College-Young Ward, contact Brad Tolman at (435) 755-5733.

The District is divided into areas generally identified by the community each is around; these names are what appear in the fogging schedule.