Mosquito Control Program

Village wide mosquito control spraying will begin Monday, August 2, 2021 and will be done every week  at sundown during the season.

Cancellation for Mosquito Spraying reasons are listed below.


The Village of Middlefield Mosquito program consists of five components:

  1. Education and Information. This component consists of practices for mosquito larva reduction such as applying repellents and reducing mosquito breeding sites. Information is made available to the public concerning how to reduce mosquito populations by efforts they can do to clean-up mosquito breeding areas that may exist on private properties.
  2. Surveillance identifies locations where mosquito populations are building; and entails the trapping of mosquito specimens that are tested for viruses.
  3. After notification to the affected areas, the Village will begin application of larvicide utilizing Natural-XRT Larvicide to treat breeding areas where the eggs, larvae, pupae are found, distributing dunks before they become adult mosquitoes.
  4. After notification the the affected areas, the Village will begin roadside application of adult spray, in areas where adult mosquitoes are found to be in numbers sufficient to warrant spraying of the area.  Spraying of the street areas including ditches and front yard areas with a truck mounted sprayer.  Property owners/tenants will have the ability to fill out the Property Exclusion from Pesticides by June 30, 2021, to decline the spraying in front of their property or residence. Spraying will start October 2, 2021 and will be done every week  at sundown during the season.
  5. The Village will apply barrier spraying in backyards, when requested by property owners, up to 4 (four) times per season with backpack sprayers. To request this service please use this form to REQUEST MOSQUITO CONTROL SERVICES.   Village parks will be sprayed when and where necessary to reduce mosquito populations, especially prior to any large public events.

The Village of Middlefield monitors the mosquito population within the Village limits from May through September thanks to a grant provided by the Ohio EPA. This is done by surveying large areas of standing water for mosquito larva. If active mosquito larvae are found, they are treated using Teknar CG and Spheratax SPH, which are naturally occurring bacteria and/or Altosid Briquets, which is an insect growth inhibitor. Altosid interferes with the normal life cycle of the mosquito and prevents the development of adult mosquitoes from larvae.  Areas in the Village of Middlefield with excessive mosquito populations are sprayed in the evenings when mosquitoes are most active, with a permethrin based insecticide; using our truck equipped with a ultra low-volume mist sprayer.

Click on the links for more information about:


Duet Adult Pesticide Label


Natular-XRT Larvicide Label

Barrier/Perimeter Treatment

Mavrik Perimeter SDS Label


Residents of are reminded that mosquitoes breed in standing water. So follow some of the tips listed below to help in reducing the mosquito population:

  • Install or repair window and door screens so mosquitoes cannot get indoors.
  • Keep gutters clean and free of standing water.
  • Empty water at least twice a week from flower pots, pet food and water dishes, birdbaths, swimming pool covers, buckets, barrels, and cans.
  • Remove discarded tires, and other items that could collect water.
  • Be sure to check containers or trash in places that may be hard to see, such as under bushes or under your home.

To request Mosquito Control Services, Click here: REQUEST MOSQUITO CONTROL SERVICES

To Opt Out of Mosquito Control Services, Click  here and Return to Village Hall or email to by June 30, 2020Property Exclusion from Pesticides OPT-OUT 


Cancellation for Mosquito Spraying

Below is a list of reasons spraying for mosquitoes would be cancelled. The spray schedule can change daily. Any of the following conditions can place spraying on hold or cancel spraying:

  • Number of adult mosquitoes trapped at specific trap site locations.
  • Winds greater than 10 mph.
  • 50% chance or greater of rain
  • Temperatures cooler than 55 degrees
  • Ozone action day
  • Mechanical failures

Areas to be sprayed are determined by the number of mosquitoes trapped at our trap sites, complaints and past history.


Click on the links below for additional information:


Village of Middlefield Spray Zone Map

Truck Mounted-Fact Sheet