ANNAPOLIS, MD (July 17, 2026) ~ Annapolis, MD - The Maryland Department of Agriculture (MDA) has announced plans to expand mosquito control services in certain areas due to concerns over potential mosquito-borne diseases. This decision comes in cooperation with the Prince George's County Health Department.

On Sunday, July 19, 2026, MDA will conduct Ultra-Low Volume (ULV) truck-based spraying in the evening near Cottage City, Brentwood, Hyattsville, Mt. Rainier and North Brentwood. The spraying will take place after 9:00 p.m. ET and will be rescheduled in case of inclement weather. Any existing spray exemptions in the area will be temporarily suspended.

The MDA Mosquito Control Program will use a permethrin-based solution that has been approved by the U.S. Environmental Protection Agency for use in public health mosquito control programs without posing unreasonable risks to human health. However, as a precautionary measure, MDA recommends avoiding outdoor activities during spraying.

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While not all mosquitoes carry diseases, MDA advises residents to take precautions to minimize their exposure to mosquito bites. These measures include wearing long, loose-fitting and light-colored clothing, using insect repellents according to product labels, avoiding mosquito-infested areas during peak activity times (between dusk and dawn), installing and maintaining window and door screens at home and regularly cleaning bird baths and pet food/water bowls. It is also recommended to remove or empty any water-holding containers.

Residents can find routine spray program schedules by county on the program's website or contact MDA's Mosquito Control Program at (410) 841-5870 with any questions or concerns.

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