MUNICIPAL

Why Municipal Spraying Sometimes Falls Short

Why municipal spraying can still leave flies and mosquitoes—technical causes and source-based control solutions.

10 June 2026 3 min read Hacı DURUÖZ

Behind “The Truck Passed—But Flies Remain”

Street fogging is visible and valued, yet complaints persist when pests breed indoors or in sheltered microhabitats. Understanding coverage limits prevents false expectations and guides complementary measures.

Reason 1: The Truck Treats the Street, Not Your Interior

Closed windows and sealed rooms keep mist outside. Occupants who open windows too soon may also miss residual effect. Coordinate timing with residents.

Reason 2: Timing Mismatch

Adult mosquitoes peak at dusk and night. Daytime-only routes underperform. Align shifts with flight activity and weather (low wind).

Reason 3: Mosquitoes vs Flies Need Different Strategies

Flying mosquitoes respond to fine ULV aerosols; houseflies and sand flies often need source treatment in basements, shafts, and damp niches—not only street mist.

Reason 4: Missing Source Control

Stagnant water, drains, and organic waste rebuild populations after adulticide nights. Larviciding and sanitation must run with adult spraying.

Solution: Source Control Plus the Right Equipment

Combine mapped breeding-site work with adjustable ULV/mist blower fleets. Explore vehicle-mounted systems and request planning support via the quote form.

Get a tailored ULV quote

Tell us your application area and capacity needs—we will recommend the right Duru ULV setup.

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FAQ

Quick answers

A common recommendation is to keep windows closed for about 15–20 minutes after the vehicle passes.
Source control is essential: find and treat basements, elevator shafts, and damp areas with professional equipment.
It helps outdoors but should be backed by larvicide in drains and standing water.