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Southlake Mosquito Abatement District
What is the Southlake Mosquito Abatement District?
The Southlake Mosquito Abatement District (SLMAD) is a Lake County unit of government, separate from the City of Highland Park.  Their website is www.slmad.org.  The goal of the district is to reduce the spread of mosquito-borne diseases through the control of mosquito populations within the district.  The SLMAD serves the Villages and Cities of Highland Park (including Fort Sheridan), Deerfield, Bannockburn, Highwood and Riverwoods.  The SLMAD also serves a small portion of unincorporated Lake County.

The SLMAD was created by statutory procedure in the 1920s.  Their major principle of operation is to improve the quality of life and reduce the risk of disease through science-based mosquito control.

For tips on mosquito protection and prevention, please view the SLMAD's Mosquito Brochure.

The hotline number for reporting standing water and other mosquito concerns is (800) 942-2555.

How can I sign up for notifications?
Prior to a mosquito treatment, SLMAD representatives will contact local governments when a treatment has been scheduled.  While SLMAD has their own notification system available by contacting , the City will send out notifications to individuals signed up for News Flash announcements.  Individuals can sign up for notifications by visiting the webpage, inserting an email address or cell phone number, and submitting the form.  

Other Frequently Asked Questions
* All information below has been provided to the City of Highland Park by the Southlake Mosquito Abatement District (SLMAD).

Why do aerial applications take place?
The Southlake Mosquito Abatement District conducts a mosquito control program that is science-based with various threshold triggers that call for different treatments based on surveillance, i.e., trap counts.  When the area experiences rain, mosquito populations climb to levels that go beyond nuisance and threaten quality of life for our residents.

What can I do at my own home to mitigate mosquitoes?
The following link contains information from the SLMAD on how homeowners can prevent mosquito population growth.

What time does application take place?

The application is typically scheduled to begin after dusk, at approximately 8:40 p.m. in summer months.  Because mosquito control is weather-dependent, wind speeds on the ground and in the air may impact our application times.

What products are being used?

The product SLMAD uses is Duet, which is registered and approved by the EPA for use in this type of application.  A very small amount of active ingredient is used - about a tablespoon treating an acre.  The droplets are configured to interact with a mosquito's physiology, and the application is not expected to impact on beneficial insects, pets or people.  

Do I need to take special precautions?  Cover my gardens?  Stay indoors?
The product SLMAD uses during aerial mosquito control application has no re-entry restrictions, and residents do not need to take any special actions during the application.  The product breaks down very quickly in the environment and has no residual effect.  There is no particular concern for fruits and vegetables, though it's prudent to wash any home-grown food before eating.  There is no need to cover ornamental plants.

Is this harmful to bees and beneficial insects?
These mosquito application are conducted during the evening when mosquitoes are most active and bees have returned to the hive.  The product dissipates and breaks down quickly in the environment, and when bees emerge in morning hours, they are not impacted.

Is this harmful to aquatic life and waterways?
At the dosage rates and droplet configuration used in this operation, there is no risk of contamination of lakes, streams, and waterways and there should be no impact to aquatic life.  The product is approved for use directly over water to target adult mosquitoes.

Who can I contact for more questions?
Please contact for any additional questions regarding SLMAD and mosquito applications.  The SLMAD website is www.slmad.org.