Missouri City residents will now see the mosquito truck twice a week instead of once.

The city said in a post on X on Thursday, Aug. 6, that it is adding Tuesdays to its mosquito spraying schedule, which previously ran only on Thursdays. The expansion is aimed at enhancing mosquito control and better protecting public health, the city said.

The regular Thursday spraying runs from 9 p.m. to 5 a.m. The city's June expansion of the same program specified that all Tuesday operations would also occur overnight, though the Aug. 6 announcement did not repeat specific hours.

This marks the second time this summer Missouri City has activated Tuesday spraying. The city first added the extra night from June 9 through July 4, according to a post on its official Instagram account. The current expansion does not list an end date. Missouri City's spraying season runs through the first week of November.

West Nile activity in the area

The expanded schedule comes as Fort Bend County has recorded 77 confirmed West Nile Virus hits in unincorporated areas in 2026, according to county health data. Six of those hits fell in zip code 77459, which covers parts of Missouri City.

The county conducted aerial spraying June 21–22 but has not scheduled additional aerial operations. Fort Bend County's program operates separately from Missouri City's and does not spray on a set schedule, instead basing applications on surveillance data.

What residents should know

Missouri City's contractor uses a product called Mosquito Mist Ultra, described on the city's mosquito spraying page as part of an environmentally friendly program targeting adult mosquitoes and breeding sites. The program is a resident-requested service.

Fort Bend County recommends the "4 Ds" for personal mosquito protection:

  • Dusk and Dawn: Limit outdoor activity during peak mosquito hours.
  • Drain: Empty standing water from flower pots, gutters and pet bowls.
  • Dress: Wear long sleeves and pants when outdoors.
  • Defend: Use EPA-approved insect repellent.

West Nile Virus has been detected in Fort Bend County every year since 2001, transmitted primarily by the southern house mosquito.