Summary：**Middlesex Borough Issues Urgent Evening Mosquito Spraying Alert for July 13, 2026****Introduction

**Middlesex Borough Issues Urgent Evening Mosquito Spraying Alert for July 13, 2026**

**Introduction**
Middlesex Borough officials announced an emergency mosquito‑control operation set for the evening of July 13, 2026. The decision follows a spike in trapped‑mosquito counts and the first reported case of West Nile virus in the area this season. Residents are urged to stay indoors during the spray window and to remove standing water from yards to reduce breeding sites.

**Key Developments**
The borough’s Public Health Department, working with the County Vector Control Agency, will deploy ultra‑low‑volume (ULV) trucks along Main Street, Oak Avenue and the Riverside Park corridor beginning at 8 p.m. and concluding by 11 p.m. Approximately 12 gallons of a pyrethroid‑based adulticide will be dispersed per mile, a dosage calibrated to knock down biting adults while minimizing impact on non‑target insects. Alerts were pushed via the borough’s website, social media channels and automated phone calls to households within a half‑mile radius of the treatment zones. Local schools have postponed after‑school activities, and the borough council approved an additional $45,000 from the emergency fund to cover overtime and material costs.

**Industry Analysis**
Evening ULV spraying remains the most rapid method for reducing adult mosquito populations during peak activity periods, according to the American Mosquito Control Association. Studies show a 70‑80 % reduction in trap counts within 24 hours when applications coincide with dusk, when species such as *Culex pipiens* are most active. However, experts caution that reliance on chemical adulticides