Mosquito Abatement Program

Warren Township has contracted with Clarke Environmental to carry out community-wide mosquito control and abatement programs throughout the summer and early fall months. Spraying does not pose a risk to residents; however, those who are sensitive to odors or have chemical sensitivities may want to keep their windows and doors closed on spray dates. If you have questions regarding the Mosquito Abatement Program or the materials used, please contact Clarke Environmental directly at 800-942-2555.

Clarke Environmental is a long established firm, having served many communities in the area for over 40 years. The services provided to the Warren Township area based on an integrated pest management approach to control mosquitoes, which includes larvae control and adult spraying.

If you have questions regarding these services or would like to report areas of severe biting, please contact the Mosquito Hotline at 800-942-2555.

2023 Spraying

Clarke Environmental conducted the fourth community-wide mosquito spraying during the dusk til dawn hours of Tuesday, August 29th into Wednesday, August 30th, 2023. Additional spray dates will be posted at a later date.

Goals & Objectives

  • To abate existing mosquito breeding sources. 
  • To prevent new breeding sites so you can fully use and enjoy your backyard and other municipal recreational facilities.
  • To protect public health and comfort.

Breeding sources we control are created by standing water, which may be found in street catch-basins, subdivision drains, roadside ditches, flood channels, ravines and other public rights-of-way. Routine larviciding, done as necessary throughout the season, will keep these areas mosquito free.

It is our responsibility to work with local, state, or federal agencies that may be involved to keep these areas abated.

Mosquito Adulticiding Spraying Process

Residents should be aware that the technology in Clarke Environmental vehicles eliminates the old theory 'slower means better.' The equipment in the treatment fleet allows the sprayer to vary its chemical output based on the speed of the vehicle, providing the correct amount of insecticide per acre at any speed from 2 to 24 miles per hour (MPH). This allows the Township to receive the correct amount of mosquitocide (not under or over applying) during treatments even as the truck turns a corner or slows to come to a stop. At speeds over 24 MPH the on board technology shuts the spray off automatically and sets off an alarm to notify the driver and the supervisor. This allows Clarke Environmental to provide the most accurate application rate and effectiveness during treatments.

Property Owner Participation

  • Clear your property of any potential breeding sites.
  • Prevent any problem areas from reoccurring.

Mosquitoes are an all too familiar summer nuisance. They are not only annoying, but they can be transmitters of encephalitis, malaria and yellow fever to humans, and heartworm to pets. You can take simple, positive steps to reduce this menace right at home, since many generations of mosquitoes can breed right in your own yard.

Yard & Home Checklist

  • Get rid of old tires, tin cans, buckets, drums, bottles or any water holding containers.
  • Fill in or drain any low places (puddles, ruts) in yard.
  • Keep drains, ditches and culverts clean of weeds and trash so water will drain properly.
  • Cover trash containers to keep out rain water.
  • Repair leaky pipes and outside faucets.
  • Empty plastic wading pool at least once a week and store it indoors when not in use.
  • Make sure your backyard pool is properly cared for while on vacation.
  • Fill in tree rot holes and hollow stumps that hold water with sand or concrete.
  • Change the water in bird baths and plant pots or drip trays at least once each week.
  • Keep grass cut short and shrubbery well-trimmed around the house so adult mosquitoes will not hide there.

Standing Water & Mosquito Breeding

Standing water means you could be raising mosquitoes!

Adult flying mosquitoes often rest in tall grass and shrubbery, but they cannot develop there. All mosquitoes need water to complete their life cycle.

Some mosquitoes lay their eggs in standing water where they hatch in just a day or two. Other mosquitoes may lay their eggs in old tires, tin cans, or other water-holding containers. The eggs may remain unhatched for weeks or even months until they are covered with water.

So, after any significant rainfall, remember to remove any standing water from your yard and help keep mosquitoes from hatching.

Clarke Environmental
159 Garden Avenue
Roselle, IL 60172
(630) 894-2000