Precision Ground Treatments in Neighborhoods & Communities

PCMCD uses truck-mounted systems to apply both adulticides and larvicides directly in neighborhoods across the county. These operations are carefully timed, scientifically guided, and built for efficiency, safety, and environmental responsibility.

Adult Mosquito Control (ULV Spraying After Sunset)

Introducing Our New Electric ULV Truck-Mounted Spray Systems

In 2025, PCMCD launched a major upgrade to its fleet with the integration of electric-powered Ultra Low Volume (ULV) sprayers, bringing quieter, cleaner, and more cost-effective adult mosquito control to Pasco County.

Benefits of the New Electric ULV Sprayers:

• Whisper-quiet operation: These electric units are approximately 30 decibels quieter than our older gas-powered machines, so you may not hear them, but they’re still hard at work.
• Eco-friendly performance: They reduce fuel use, cut down on emissions, and lower the District’s carbon footprint, without compromising effectiveness.
• Cost savings: Provided at no cost to the District through federal CDC grant funding, each unit saves taxpayers about $10,000 annually in fuel, maintenance, and service costs.
• Advanced visibility & tracking: Units are equipped with bright LED lights and amber cab beacons to indicate active spraying. All vehicles are GPS-monitored to ensure accurate and targeted treatments.

When and Why We Spray:

• Timing matters: Applications begin about 30 minutes after sunset, when most mosquitoes are active and pollinators like bees and butterflies are not.
• Target-driven: Spraying is not on a fixed schedule. We use adult mosquito surveillance data, including trap collections and field reports, to determine if, when, and where to spray.
• Safe & effective: ULV spraying disperses a fine mist of insecticide that quickly knocks down active, flying mosquitoes, without leaving residue or harming people, pets, or property.

Surveillance-Driven Decisions

Every truck-based treatment, whether larvicide or adulticide, is guided by:

• Daily trap collections and field data to monitor mosquito populations
• Breeding site inspections by field technicians
• Environmental factors such as rainfall, flooding, or container presence

We align treatment type and timing with the mosquito life cycle, ensuring that every application is:

• Appropriate for the life stage present
• Scientifically justified
• Environmentally conscious