ANNAPOLIS, MD (September 18, 2026) – The Maryland Department of Agriculture (MDA), in cooperation with the Baltimore County Health Department and the Prince George’s County Health Department, will expand mosquito control services in areas due to a public health concern over the potential for mosquito-borne diseases.
- Ultra-Low Volume truck-based spraying to control adult mosquitoes is planned for the evening of Sunday, September 20, 2026 in Nottingham, covering the radius from Hartford Road to Oak White Road to Magledt Road and back to Harford Road (please see the below map).
- Ultra-Low Volume truck-based spraying to control adult mosquitoes is planned for the evening of Sunday, September 20, 2026 in Laurel, covering the radius from Montgomery Street to Baltimore-Washington Boulevard to Nest Court to First Baptist Lane (please see the below map).
Spraying will occur after 9:00 p.m. ET in both locations. In the event of inclement weather, spraying will be rescheduled for Monday, September 21, 2026. Any existing spray exemptions in the area will be temporarily suspended.
MDA Mosquito Control Program personnel will use a permethrin-based solution that the U.S. Environmental Protection Agency has approved for use in public health mosquito control programs without posing unreasonable risks to human health. However, out of an abundance of caution, MDA recommends avoiding outdoor activities during spraying.
While not all mosquitoes carry diseases, MDA suggests that residents take precautions to minimize their exposure to mosquito bites. These measures include:
- Wear long, loose fitting, light colored clothing.
- Wear insect repellents according to product labels.
- Avoid mosquito infested areas during prime periods of activity (between dusk and dawn).
- Install, inspect, and repair window and door screens in homes and stables.
- Regularly clean bird baths and bowls for pet food and water.
- Remove or empty all water-holding containers.
Routine spray program schedules are available by county on the program’s website. Please contact MDA’s Mosquito Control Program with any questions or concerns at (410) 841-5870.
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