5015 Stickney Ave., Toledo, Ohio 43612 (419) 726-7891

Integrated Mosquito Management (IMM)

TASD practices, promotes, and firmly believes in utilizing integrated mosquito management (IMM) techniques for its operations. Utilizing an IMM approach means that TASD approaches the task of mosquito control from a holistic perspective: seeking to prevent and control mosquito populations at every possible level of their development. The IMM approach employed by the TASD focuses on surveillance, source reduction, larval mosquito control, adult mosquito control, education, and community outreach. No single phase of the IMM approach is more important than another. Each aspect of this approach is integral to reducing and controlling mosquito populations in the most efficient and environmentally conscious manner possible. IMM uses methods that, when followed correctly, are safe and have been scientifically shown to reduce mosquito populations.

IMM Proactive versus Reactive


Educating the citizens of Lucas County about mosquito biology and how to protect themselves from mosquito bites and disease transmission as well as how to identify and eliminate mosquito breeding sources around the home and in the community is vital to the mission of the TASD. Biologists on staff are available to give presentations to school groups, community groups, and other organizations or set up a display at your event. There are several different topics that can be covered or you can request something to suit the needs of your group. Contact our office or fill out the Request a TASD Service form to schedule a TASD representative for your group or event.


Surveillance is the backbone of an integrated mosquito management program: determining the need to conduct control operations, providing the information necessary to prioritize control treatment plans, and studying the efficacy of those control operations. The TASD routinely relies on citizen surveillance reports and data collected through a network of surveillance traps and activities that are continually monitored throughout the mosquito season to provide the information necessary for successful mosquito control operations.

Usually beginning in May and continuing through September, adult mosquito populations and disease prevalence within those populations are monitored using stationary New Jersey Light Traps, gravid traps, BG sentinel traps, CDC light traps, and oviposition traps. The mosquito collections are identified to species in the lab by trained personnel. The survey data is used to estimate relative population densities of individual mosquito species and increased risk of disease transmission, suggesting which areas within Lucas County need increased control efforts. Citizens can contribute to data useful in determining mosquito nuisance levels by using the Report a BITE! form.

West Nile Virus Surveillance Map

*This map will be updated as new mosquito test results become available, but should not be viewed as a comprehensive depiction of risk.  Personal protective measures and caution should always be used when outdoors during mosquito season.


How to check your service map number:
  1. Enter the address in the map search bar.
  2. Click on the map address location to learn more about the number of positive West Nile Virus pools in that service map.

Water Management & Source Reduction

The removal or modification of potential mosquito breeding habitats is a basic component to a good mosquito control program. TASD staff is routinely involved in small-scale mosquito breeding source reduction efforts on a daily basis. Activities such as emptying a bucket, dumping out a container, or removing a used scrap tire can make a big difference in reducing local mosquito populations.

A unique component of the integrated TASD program is the large-scale water management projects conducted during the fall and winter. These projects can generally be described as cleaning ditches or removing blockages in local waterways and drain paths that are meant to keep water flowing properly and reduce spring-time flooding that creates mosquito breeding habitats. The TASD works with individual homeowners, land managers, and the Lucas County Engineer’s office to identify areas in need. Contact our office or fill out the Request a TASD Service form to have TASD representative inspect a blocked waterway on or near your property.

TASD has been awarded funding from the Great Lakes Sediment and Nutrient Reduction Program to improve water quality of Lake Erie through ditch modification. TASD will be installing a two-stage ditch and riparian buffer strip along Wiregrass Ditch in the Lower Maumee Watershed in 2022.

Larval Mosquito Control (Larviciding)

Aside from removing a potential breeding source altogether, larval mosquito control (larviciding) is the most effective method of control used by the District. Thousands of potential mosquito breeding sites are routinely checked by District personnel each season. If the presence of mosquito larvae is found in a water source that cannot be drained or dumped, TASD can apply control products designed to kill the larvae before they can complete their development and become adult mosquitoes. This is primarily accomplished through the use biological pesticides with bacterial spores of Bacillus thuringiensis israelensis (BTI) as the active ingredient. These spores are not toxic to humans or other aquatic organisms. TASD employees larvicide to thousands of different mosquito-breeding water sources each year. Floodwater sites, discarded tires, abandoned swimming pools, catch basins, and retention ponds are examples of some of the mosquito habitats TASD larvicides each season.

TASD also conducts liquid larvicide application treatments from common roadways using spray equipment designed to disperse droplets of the bacterial biological pesticides dissolved in water into cryptic breeding locations around the home.  The schedule for these liquid larvicide applications are advertised by the District in its “Spray Schedule”. 

Contact the office or fill out the “Request a TASD Service” form to have a TASD representative inspect any source of standing water near or on your property, and treat it, if necessary.

Adult Mosquito Control (Adulticiding)

The method of mosquito control most familiar to the public is the truck-mounted units spraying from dusk to dawn as part of nighttime control efforts (fogging). Adulticiding is conducted when environmental conditions are favorable and when mosquitoes are most active. This important part of an Integrated Mosquito Management Program is designed to kill adult mosquitoes in flight at the time of the application, with no residual control. TASD utilizes ultra-low volume (ULV) technology that disperses approximately one tablespoon of public health insecticide per acre in droplets that are approximately 20 microns in size. To further explain, this equates to 1.25 tablespoons of liquid applied to an area approximately the size of a football field in droplets that are small enough to fit 5 or 6 across the width of a human hair.

The US Environmental Protection Agency (EPA) and the Centers for Disease Control (CDC) have asserted in a joint statement regarding mosquito control activities that the use of adult mosquito control products applied using ULV technology do not pose any unreasonable risk to humans or the environment. More information on the effects of mosquito control products on human health, the environment, and non-target animals/insects can be viewed here. Citizens that would like to “opt-out” their property from nighttime fogging treatments can apply to do so by clicking on the button below. 

TASD now offers citizens a long-driveway treatment program. This program is designed to increase the coverage area of nighttime mosquito control fogging applications made from public roadways. Citizens can apply for the program online or by calling the TASD office at 419.726.7891. If your driveway meets the criteria, a TASD staff member will contact you to complete the enrollment process. In the meantime, and in the event that your driveway is not eligible for this program, please feel free to request additional nighttime fogging service for your area via phone call or through our website.

    Spray Schedule

    Surveillance of adult mosquito populations shape decisions on where nighttime “fogging” treatments and/or liquid larviciding applications will be scheduled. TASD organizes and coordinates its programs by dividing Lucas County into a system of individually numbered service maps. There are 361 TASD service maps within Lucas County. Spray schedules are advertised by TASD service map number. Use the map below to determine the service map number for your area of interest by zooming to the location or entering an address in the “Esri World Geocoder” search bar. Service maps are outlined and numbered in red.

    For adult mosquito control, recently treated maps are shaded blue. Service maps shaded green are scheduled for treatments on the next viable night.

    For liquid larvicide treatments, recently treated maps are shaded purple. Service maps shaded orange are scheduled for treatments on the next viable night.

    There are no nighttime fogging applications scheduled at this time, for the remainder of the year. Fogging treatments will resume when mosquito populations necessitate the need and weather conditions are conducive to operations.

    1. Enter the address in the map search bar.
    2. Click next to the dot on the map address location for your service map number.



      Toledo Area Sanitary District
      Mosquito Control
      5015 Stickney Ave., Toledo, Ohio 43612

      Monday – Friday, 8AM – 4:15PM

      Phone: (419) 726-7891
      Fax: (419) 726-7721