The District is implementing a combination of response, prevention, and innovative mosquito management strategies this week to address current mosquito-borne disease risks and reduce future mosquito populations

Coachella Valley, CA: The Coachella Valley Mosquito and Vector Control District (District) will conduct several mosquito control operations throughout the coming weeks as part of its ongoing efforts to reduce mosquito populations and protect residents from mosquito-borne diseases. While these activities are occurring within the same timeframe, each operation serves a distinct purpose and is based on different scientific and operational needs.

Targeted Adult Mosquito Control Planned Following West Nile Virus Detection

In response to recent West Nile virus activity detected in mosquitoes near the North Shore area, the District is planning targeted truck-mounted ultra-low volume (ULV) adulticide treatments and aerial adulticide applications to reduce populations of adult mosquitoes capable of transmitting the virus.

These operations are guided by mosquito surveillance data, virus detections, mosquito abundance, and public health risk assessments. Adult mosquito control treatments are used when surveillance indicates an elevated risk of disease transmission and are intended to quickly reduce populations of infected mosquitoes.

Annual Wide Area Larvicide Treatments Begin June 6

Beginning June 6, the District will initiate its annual Wide Area Larvicide Treatment program in selected areas throughout the Coachella Valley, including in the Cities of Palm Springs, Desert Hot Springs, and the North Shore community.

These preventative treatments target immature mosquitoes before they become biting adults and are based on historical surveillance data, mosquito abundance trends, environmental conditions, and risk assessments. Wide area larvicide is an important component of the District's Integrated Vector Management Program and helps reduce mosquito populations before they reach levels that may impact residents.

Applications are conducted during overnight and early morning hours using products registered for mosquito control and applied in accordance with state and federal regulations.

Protecting Public Health Through Integrated Vector Management

The District employs an Integrated Vector Management approach that combines surveillance, source reduction, biological control, larval control, public education, and adult mosquito control when necessary. Each mosquito control operation is selected based on scientific evidence and specific public health objectives.

"These activities represent different tools within our integrated mosquito management program," said Jennifer Henke, Laboratory Manager for the District. "Whether we're responding to virus activity, preventing mosquito development, or implementing innovative technologies to reduce invasive mosquito populations, our goal remains the same: protecting the health and quality of life of Coachella Valley residents."

What Residents Can Do

Residents can help reduce mosquito populations and protect themselves from mosquito bites by:

• Dumping and draining standing water around homes and businesses.
• Cleaning and scrubbing containers that hold water.
• Wearing EPA-registered insect repellent when outdoors.
• Ensuring doors and windows are properly screened.
• Reporting mosquito problems to the District.

WALS ULV 06.02.2026.pdfWALS ULV 06.02.2026 Spanish.pdf