Mosquito Abatement

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In Cook County

The Northwest Mosquito Abatement District (847-537-2306), a separate taxing district, provides mosquito abatement services to northwest Cook County, including portions of Bartlett. Visit to report standing water to the Northwest Mosquito Abatement District. This is a quick and easy link for Bartlett residents in Cook County who get their mosquito abatement from this district. 

In DuPage County

In DuPage County, the Village of Bartlett contracts with Clarke Mosquito (800-942-2555) to provide mosquito abatement services.Clarke Mosquito uses a four-part process to control the mosquito population.

The first part of the program is aimed at identifying mosquito breeding sites. Drainage ditches, swamps, and areas of low or standing water are mapped. The objective of this step is to define, categorize, and measure the total number of larval development sites. Clarke uses this information to plan for and monitor the larval and adult mosquito population.

The second part of the program involves surveillance and monitoring of the mosquito population. The distribution and density of mosquito species in relation to human populations are defined in order to control the threat of disease or nuisance. In many cases, brood prevention methods combined with the use of light traps measure mosquito population levels and prevent major infestations.

The third part of the program involves the control of larvae. Clarke Mosquito Control treats breeding sites to prevent the development of adult mosquitoes. The larvicides used kill mosquito larva, thereby prevent their maturation into adult mosquitoes. The larvicides used by Clarke Mosquito Control degrade rapidly, leaving no accumulation in the soil, water, or air.

The final step in Bartlett’s mosquito control program involves the control of adult mosquito populations. In cases where there are encephalitis alerts or when the nuisance factor becomes excessive, such as after a heavy rainfall that may cause new mosquito broods to hatch, Clarke Mosquito Control may use Ultra Low Volume cold aerosol misting to reduce the adult mosquito population. The need for this type of spraying is rare, because of the preventative steps taken by Clarke to control the mosquito population. The decision to spray is dependent upon the population of mosquitoes, as determined by light traps, and by resident complaints.As a result of this four-part program, there is no regular schedule for spraying.

Clarke Mosquito Control maintains a call list to inform residents when spraying will occur. If you would like to be placed on this list, please call Clarke at 1-800-942-2555.

For more information you can visit Clarke Mosquito Control on the web.

To help DuPage County residents protect themselves against West Nile virus (WNV), the DuPage County Health Department has created a Personal Protection Index (PPI) that will inform residents of the amount of WNV activity in the county, as well as prevention steps that are recommended.

The PPI provides residents with a current snapshot of WNV activity, ranging from zero to four, with zero being no activity and four announcing multiple human cases of WNV in DuPage County. The PPI will be updated every Wednesday at 3 p.m., by Health Department staff, during the surveillance season.

Learn more about DuPage County's program, "Fight the Bite," at

 Mosquito warning2018

West Nile Virus

To check for West Nile Virus updates and get additional information for other parts of Illinois, visit the Illinois Department of Health's West Nile Virus web page

Zika Virus

Although Illinois is not in a high risk zone for mosquitoes that transmit the Zika virus, during the 2016 mosquito season, Clarke worked with other public and private entities in Illinois and other states to conduct surveillance for potential Zika vectors (Asian Tiger Mosquito) locally.

Unlike most of the mosquito outbreaks in recent years, the Zika virus is transmitted by mosquitoes that prefer to bite during daytime hours, are container-breeders and harbor indoors. Traditional adult mosquito control, customarily done between dusk and dawn, may need to be modified.  Treatments conducted an hour before sunset, or the hour after sunrise will provide greater opportunity for control.

There are two species, Aedes aegypti and Aedes albopictus that to the best of current knowledge are the only species capable of actively vectoring or transmitting the Zika virus. Both Aedes aegypti and Aedes albopictus like to lay eggs in very small amounts of water. That is how they earned their 'container breeder' nickname - you can find their eggs in items as small as a bottle cap. They love standing water, therefore any type of container is a potential breeding site, e.g. trays of flower pots, bird baths, standing water in gutters, downspout drains, uncovered rain barrels, still ponds, junk piles.

They also like to live in residential areas and bite during the day . . . just the opposite of the night-biting mosqutioes that can carry West Nile virus. In fact, Aedes aegypti prefer to rest inside at night. Leave your garage door up? That's a wide open invitation to Ae. aegypti. Carports, sheds and other out buildings are all desired resting spots too.

If you live in an area where Aedes aegypti or Aedes albopictus are found, you need to do your part to keep your property free of potential breeding sites. Remember - these species like to lay eggs in as little as a teaspoon of water and can hatch in just 3 to 4 days.

Be Zika Free, Check Every Three

Every three days, residents should check their yards for potential breeding sites.

Tip and toss water found in:
•Flower pot trays
•Planter boxes
•Kiddie pools
•Sandbox and yard toys
•Wheel barrows
•Watering cans
•Boat covers

Remove trash or junk that can hold water from your yard:
•Abandoned tires
•Trash / Trash cans
•Unused lawn furniture or grills
•Food containers
Check gutters and drain tubes (especially ridged tubing)

Treat rain barrels with a larvicide from hardware store or nursery

For more information about the Zika virus and the health concerns that it presents, visit the Village Health & Safety page.