Mosquito Control

The mosquito season typically runs from April to October depending on the severity of the winter. After mild winters, the season may last all year. The City of La Porte uses the following methods to attempt to control the mosquito population:
  • Night fogging
  • Larvaciding of ditches
  • Briquettesin
Mosquito
View a chart of spraying zones (PDF) online. If you have any questions concerning the chemicals used in this program, desire to have a copy of the Material Safety Data Sheets (MSDS), questions about the program, information on the time your area is scheduled for spraying, or have a complaint, please call 281-471-9650.

Mosquito Control Chemicals


The City of La Porte uses only mosquito control chemicals which have been tested and approved by the Environmental Protection Agency. No chemicals are used which have proven to be damaging to either public health or the environment. The City of La Porte Mosquito Control Operators are licensed Pest Control Applicators through the Texas Department of Health and must annually update their training in order to retain their licenses.

If you have any questions concerning the chemicals used in this program, desire to have a copy of the Material Safety Data Sheets (MSDS), questions about the program, information on the time your area is scheduled for spraying, or have a complaint, please call 281-471-9650.

City Connect


Public Works utilizes the City's phone notification system to notify residents prior to spraying. You may register online. If you need assistance with the registration, contact the La Porte Office of Emergency Management. While the City utilizes ultra low volume of pesticide chemicals in the spray, residents that maybe concerned about the potential effects of pesticides may desire to the following steps the evening of scheduled spraying:
  • Don’t let children play behind or near the truck mounted applications as they are operating
  • Close windows
  • Remove shoes and/or wipe pet paws before entering home to avoid tracking residue
  • Store toys inside

Other Control Measures


Spraying is not the only measure taken in a comprehensive mosquito control program. During the day, the ditches of the city are sprayed with a chemical and oil mixture to kill mosquito larvae before they mature. Also chemical briquettes are placed in some ditches to provide long-term control of larvae. Each citizen can help in the control of mosquitoes by taking the following measures:
  • Get rid of standing water on your property where mosquitoes might breed.
  • Properly dispose of tires, cans, flower pots, etc.
  • Keep gutters clean and freely flowing. Standing water in gutters can breed mosquitoes.
  • Keep swimming pools, spas, and fountains properly treated with chemicals.