Arlington scheduled two consecutive nights of targeted ground spraying on September 1 and 2, 2026, after Tarrant County Public Health notified the city that one of its mosquito trap samples tested positive for West Nile virus. Crews work between 9 p.m. and 5 a.m., weather permitting, within a half-mile radius of the positive trap, near the intersection of Caliente Drive and Commander Court.
The scale here is worth stating precisely, because the framing around mosquito spraying often outruns the facts. This was a single positive trap sample, not a cluster of human cases, and the response covers a defined half-mile area rather than the city. No new Arlington human case was announced alongside the spraying.
