Mosquito Fogging

Where are we fogging? Call the Mosquito Fogging Hotline: 502-574-6641

 

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Mosquito Fogging: FAQs

Mosquito Fogging: One way we reduce the mosquito population

Fogging operations are part of our Integrated Vector Management (IVM) plan

Why does fogging take place?

 Fogging is performed on a case-by-case basis to address adult mosquitoes carrying diseases or high number of mosquitoes. Factors considered when deciding to perform fogging: 

  • Disease is present in mosquitoes.
  • 100-plus in a trap
    • Human residence / population density
    • Vulnerable population density (population with high likelihood of worst consequences if infected by mosquito borne disease) 
    • When the area is a known mosquito-breeding location
What is used to perform fogging? 
  • Zenivex, a synergized synthetic pyrethroid, is used and distributed by an ultra-low volume fogging machine. Zenivex breaks down quickly in sunlight and does not have a residual effect. 
  • The U.S. Environmental Protection Agency and Kentucky Department of Agriculture recognize pyrethroids as safe to use without posing unreasonable risks to human health. 
  • Before most fogging operations are begun, we will use targeted, phased control techniques to address mosquitos. Techniques include, eliminating breeding areas (standing water), treating catch basins (storm drains), treating standing water with larvicide to prevent mosquitos from hatching, and investigating complaints.
When does mosquito fogging occur? 
  • Between June – October when mosquitos numbers are at their highest.  Monday through Thursday evenings between dusk and dawn.
  • Fogging will occur within 7-10 days following notification. Usually within 48 hours of notification depending on weather.

Fogging will be postponed if: 

  • It is raining, 
  • Wind speeds exceed 10 miles per hour or evening temperatures are below 65 degrees.

If fogging activities are cancelled due to weather conditions, they will be rescheduled for the next available weekday evening. 

Fogging notifications? How does it happen?

We notify people via news media, social media, posting on our website and via LensAlert.

Where will mosquito fogging occur? 
  • Fogging takes place in areas where surveillance trapping has verified elevated numbers of adult mosquitoes and where fogging will serve as an effective step to protect public health. 
  • Historical surveillance trapping has identified 14 areas in Louisville most burdened with historically high numbers of mosquitoes. Fogging in these areas has been found to be most effective at protecting public health. We refer to these locations as “Regular Trap Sites.” Regular Trap Sites change slightly over time based on trapping data and trapping site location availability. 
  • Complaint-based surveillance trapping identifies additional areas in Louisville burdened with high mosquito numbers and where mosquito diseases may be present. These locations are referred to as “Complaint Trap Sites.”
  • Areas in and around “Regular Trap Sites” can be expected to be fogged 2 – 3 times annually. 
  • Regular Trap Sites are in the following neighborhoods/ZIP codes, listed with the frequency of fogging (based on data from 2022):
Irish Hills x 4     Smoketown / E. Breckinridge x 3 
Seminary / Crescent Hill x 2 Old Louisville / 6ht Street Corridor x 4 
Poplar Level x 0 California x 3 
Churchill Downs Park Duvalle x 4 
Iroquois / South 3rd     x 1 Nulu x 0 
River Park x 2     Hikes Lane x 0 
Portland / Griffiths Avenue x 3 South Highlands x 1

 

Areas in and around “Complaint Trap Sites” can expect to be fogged if surveillance trapping shows high mosquito numbers or mosquito borne disease. Complaint sites with continued challenges will have multiple control techniques implemented in the surrounding areas. 
    
Previous Complaint Trap Sites have included:

Alma Avenue     Brick Kiln Lane
Deer Park Lane Farnsley Road 
Six Mile Lane Lees Lane
Southern Heights Road Maravian Drive 
Tolls Lane West Broadway
Terry Road Euclid Avenue 
Hazelwood Valley Village North 
Submit a mosquito complaint

If you believe your area needs to be assessed for mosquito abatement, please Metro311 and ask to submit a complaint about mosquitos.  Please make sure to leave a specific address or nearby street locations such as “in the wooded area behind Tully Elementary School" or “in the Farmgate subdivision.” We will investigate your complaint and assess what follow-up activities are appropriate for your area.

Sign up for LensAlert to be notified of fogging operations in your area and for other important community notification alerts.

To find out where and when we are fogging, please review “Fogging Operations” below.  Or, you may call our mosquito hotline at (502) 574- 6641.

Contact us to be added to our No Fogging list. 

During fogging operations, PLEASE:
  • Keep children away from the fogging vehicle.
  • Park your vehicle off the street when possible.
  • Do not tailgate or follow the fogging vehicles.
  • Do not stop the fogging truck while it in process.
  • Go inside and remain indoors while the fogging vehicle is in the neighborhood.
  • Keep windows to your home closed.
  • Bring pets inside.

 

Fogging Operations

2023 Fogging Operations

Date

Neighborhood

Zip Code

7/25/23

Iroquois

40214

8/2/23

Portland

40212

8/2/23

Irish Hills

40206

8/2/23

Audubon Park

40213

8/2/23

 Churchill Downs

40208

 8/7/23

 Riverpark

 40211

 8/7/23

 Merriweather

 40217

 8/7/23

 Shelby Park

40203

8/17/23

Smoketown

40203

8/23/23

California

40210

8/17/23

Old Louisville

40212

8/23/23

Park DuValle

40211

8/17/23

Hikes Point

40218

8/17/23

West Pages

40258

8/30/23

Germantown

40204

8/30/23 Cloverleaf 41216
9/7/23 Irish Hills 40206
9/7/23 Crescent Hill 40280
9/7/23 Highlands 40204
9/7/23 Iroquois 40214
9/12/23 Valley Village 40272
9/12/23 Graston Ave 40216
9/12/23 Hikes Point  40218
9/12/23 Smoketown 40203
9/13/23 Churchill Downs 40215
9/13/23 River Park 40211
10/3 – 10/5/23 Crescent Hill 40280
10/3 – 10/5/23 Churchill Downs 40215
10/3 – 10/5/23 Portland 40212
10/3 – 10/5/23 Auburndale 40214
10/3 – 10/5/23 Old Louisville 40208
10/3 – 10/5/23 Hikes Lane 40218
10/3 – 10/5/23 Smoketown 40203
10/18/23 Iroquois 40214

 

2022 Fogging Operations 

DATE

NEIGHBORHOOD

ZIP CODE

8/2

Portland

40212

8/2

Smoketown

40203

8/3

Park DuValle

40211

8/3

Irish Hill

40206

8/3

Churchill Downs

40215

8/3

Iroquois

40214

8/11

California

40210

8/11

Old Louisville

40208

8/25

River Park

40211

8/30

Valley Downs

40272

8/30

Valley Station

40272

8/30

West Pages (1/2)

40258

8/31

Portland

40212

8/31

West Pages (1/2)

40258

8/31

Old Louisville

40208

8/31

Smoketown

40203

9/1

Park DuValle

40211

9/6

Crescent Hill

40206

9/6

Irish Hill

40206

9/13

Hazelwood

40215

9/14

7th Street

40208

9/28

Irish Hills     

40206

9/28

Old Louisville

40208

9/28

Valley Village North

40272

9/29

California

40210

9/29

Park DuValle

40211

10/14

Highlands

40205

 

 
For more information
  • Learn more about fogging operations in your area and for other important community notification alerts.
  • To check if your area will be fogged, call the mosquito hotline, 502-574-6641. To make a complaint about mosquitos in your neighborhood, call Metro311 by dialing 311 or 502-574-5000.
  • To be added to our no fogging list, please fill out this form to submit your name, address and contact information.
  • Watch a video to learn more about mosquito prevention.

 

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