If you hear a low-flying aircraft over the farmland north of Natomas Monday evening, don’t be alarmed. It’s not crop dusting season—it’s mosquito season.

The Sacramento-Yolo Mosquito and Vector Control District has scheduled an aerial mosquito control operation for Monday, July 27, between 8:00 p.m. and midnight, targeting agricultural areas where mosquito populations and West Nile virus activity have reached treatment thresholds.
The treatment area includes portions of Sacramento County in ZIP codes 95837, 95836, 95626, 95835, and 95673, covering agricultural land north of Natomas, including areas near the Rio Linda-Elverta community.
District officials will apply Evergreen 5-25 using ultra-low volume (ULV) application techniques. While the aircraft may be noticeable, the amount of material released is extremely small and is intended to reduce adult mosquito populations quickly while minimizing environmental impact.
West Nile virus remains a seasonal concern throughout the Sacramento Valley. Although most people infected never develop symptoms, the virus can cause serious—and occasionally fatal—illness, particularly among older adults and those with weakened immune systems.
The aerial treatment is part of the District’s Integrated Pest Management program and is conducted only after mosquito surveillance indicates that control measures are warranted. All products used are registered with and evaluated by the California Environmental Protection Agency.
Residents who wish to take additional precautions during the spraying period are encouraged to:
- Remain indoors if spraying is occurring in your immediate area.
- Consult their physician if they have specific health concerns or medical conditions.
The District notes that aerial applications may be postponed or canceled if weather or other operational conditions make treatment unsafe or ineffective.
For more information about the mosquito control program, treatment schedules, or frequently asked questions, visit FightTheBite.net or call the Sacramento-Yolo Mosquito and Vector Control District at 800-429-1022.
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