Public Works

Here’s the buzz: Everything you need to know about mosquito spraying in Sugar Land

If you’ve spent any time outside in the last couple of weeks, you might have noticed an uptick in mosquitoes. Fight the bite in Sugar Land and learn what the city does to keep you and your family safe.

Mosquito spraying

Spraying for mosquitoes aims to protect the public from public health concerns like West Nile Virus. Sugar Land sprays for mosquitoes Friday nights from May through October, weather permitting. Spraying begins each Friday around 9 p.m. until the entire city has been treated.

Mosquitoes are tracked every week at 19 surveillance sites around the City. Data collected from these sites determines whether spraying needs to be increased to twice a week due to a higher than normal population of mosquitoes.

Note: Mosquitoes actually become resistant to chemicals the more the city sprays. So a rotational chemical is used to minimize the effect.

Larvicide treatments and mosquito trapping

The City also treats drainage ditches and the storm water sewer system in an effort to reduce the mosquito population by preventing mosquito larvae from becoming adults.

Traps and tests are currently set up to test mosquitoes for both West Nile and Zika viruses.

Fight the bite

Residents can protect themselves by practicing the Four D’s: Drain, Dusk and Dawn, Dress, and DEET.

  • Drain: Drain standing water where mosquitoes breed. Common breeding sites include old tires, flower pots, bird baths, and clogged rain gutters.
  • Dusk and Dawn: Stay indoors at dusk and dawn. This is the time of day when mosquitoes are most active.
  • Dress: Dress in long sleeves and long pants, if possible, when you are outside.
  • DEET: Use insect repellent containing DEET picaridin or lemon eucalyptus oil.

Use the Backyard Explorer tool on our website to find unexpected places mosquitoes may thrive on your property.

For more information, visit

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