UPDATED: September 30, 2024
The Lake County General Health District (LCGHD) conducts mosquito treatment in most of the municipalities in Lake County that are densely populated. Treatment reduces the risk of mosquito-borne diseases and provides for a more comfortable summer environment. Since mosquitoes may be infected with both La Crosse and St. Louis Encephalitis Virus, and human cases with this disease have been identified in the Health District in the past, mosquitoes can be considered a public health nuisance. The public health significance of mosquitoes has been amplified by the recent spread of the West Nile Virus. The Health District is licensed through the Ohio Department of Agriculture to apply pesticides for the purpose of mosquito control. If you have any further questions that are not answered from this web site, please contact our offices on weekdays between 8:00 a.m. and 4:30 p.m. at (440) 350-2543 or (440) 918-2543.
Updated Treatment Schedule
The same information as below may be obtained by calling the Health District Treatment Schedule Hotline, 24 hours per day at (440) 350-2088 OR (440) 918-2088.
Following is the mosquito spray schedule, weather permitting.
Monday, 9/30/24
Mentor 3B (Southern portion of Mentor)
Fairport Harbor & Grand River
Tuesday, 10/1/24
Mentor on the Lake
Wednesday, 10/2/24
Willoughby 7A
Willoughby 7B
Thursday, 10/3/24
Painesville 11A
Cancellation for Mosquito Treatment
The treatment schedule can change daily. Any of the following conditions can delay or cancel treatment:
- Number of adult mosquitoes trapped at specific trap site location below the threshold value for treatment
- Winds greater than 15 mph
- 50% or greater chance of rain
- Temperatures cooler than 55 degrees
- Mechanical failures
- We will evaluate if spray is warranted on an Air Quality Advisory day
Areas to be treated are determined by the number of mosquitoes trapped at our trap sites, complaints, and past history.
This page is updated as new information is provided to us by the LCGHD. Please note that the schedule can change at any time. Please call the Mosquito Hotline at (440) 350-2088 or visit https://www.lcghd.org/mosquito-control/ for an up-to-date schedule.