2021 Infected Mosquito Treatment Zones / Schedule

Mosquito spraying occurs when mosquitoes trapped test positive for West Nile Virus or there is a higher number of uninfected mosquitoes than normal.

  • Oct. 5: IRV-56. The Dallas County Health and Human Services has confirmed a positive West Nile Virus sample from this area. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Oct. 5-7 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 28: IRV-34 and IRV-43. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from mosquito traps in these areas. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Sept. 28-30 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 23: IRV-32. The Dallas County Health and Human Services notified the city that an 83-year-old Irving resident died due to complications from West Nile Virus. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Sept. 23 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 21: IRV-33. The Dallas County Health and Human Services has confirmed a positive West Nile Virus sample from this area. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Sept. 21-23 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 14: IRV-44. The Dallas County Health and Human Services has confirmed a positive West Nile Virus sample from this area. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Sept. 14-16 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 8: IRV-31, IRV-34 and IRV-40. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from three mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Sept. 8-10 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Sept. 8: IRV-49. Dallas County Health and Human Services has reported a human case of the West Nile Virus from this area. Due to the late reporting of the positive case and weather conditions, the City of Irving will apply larvicide to the area’s waterways.
  • Aug. 31: IRV-42 and IRV-48. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from mosquito traps in these areas. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 31 through Sept. 2 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 24: IRV-29, IRV-35, and IRV-50. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from three mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 24-26 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 24: IRV-27. The Dallas County Health and Human Services has reported a human case of the West Nile Virus from this area. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 24 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 17: IRV-31, IRV-40, and IRV-46. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from three mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 19-21 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 12: IRV-28. The Dallas County Health and Human Services has reported a human case of the West Nile Virus from this area. The city will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 12 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 10: IRV-21, IRV-36, and IRV-39. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from three mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 10-12 in these areas, weather permitting. ULV fogging is not dangerous to pets or people.
  • Aug. 3: IRV-02, IRV-29, IRV-32, IRV-35, and IRV-53. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from five mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. Aug. 3-5 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • July 27: IRV-28 and IRV-40. The Dallas County Health and Human Services has confirmed positive West Nile Virus samples from two mosquito traps. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. to 4 a.m. July 27 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • July 20: IRV-57. City of Irving Vector Control Laboratory confirmed a positive West Nile Virus sample from a mosquito trap. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. July 20 to 4 a.m. July 21 in this area, weather permitting. ULV fogging is not dangerous to pets or people.
  • July 13: IRV-35. City of Irving Vector Control Laboratory confirmed a positive West Nile Virus sample from a mosquito trap. The City of Irving will conduct a truck-mounted ultralow volume (ULV) fogging from 9 p.m. July 13 to 4 a.m. July 14 in this area, weather permitting. ULV fogging is not dangerous to pets or people.