What is the City of Frisco doing about mosquito viruses?
The City of Frisco treats city-owned areas of stagnant water with a larvicide. This is an integral part of the approach recommended by the CDC in minimizing the number of mosquitoes in our area. The city also performs a mosquito surveillance program. In this program, mosquitoes are trapped and shipped for testing by a contracted entomologist. Traps are tested once per week and results are results are received within 48 hours. A trap testing positive will result in increased monitoring efforts that could include treating with larvicide and adulticide to reduce the mosquito population. Source reduction / elimination (removing standing water and mosquito breeding habitats) are considered to be the most effective tool in preventing the possible transmission of mosquito-borne illnesses. In addition, there is continuous monitoring of areas owned and maintained by the City of Frisco.


On April 16, 2013, City Council approved a revised Mosquito Surveillance and Response Plan. The plan includes a comprehensive surveillance program that is science-based and will be able to identify the disease-transmitting mosquitoes and their gender versus nuisance mosquitoes. Efforts are made to disseminate new information as quickly as possible to our citizens.

If you have questions, please contact Health & Food Safety.

Show All Answers

1. What do I need to know about Zika and other viruses?
2. What is the City of Frisco doing about mosquito viruses?
3. Are there any precautions I should take to reduce my risk of mosquito bites?
4. Will the City of Frisco treat areas on private property?
5. I see standing water in a drainage easement next to my property. What should I do?
6. What is the risk of someone becoming infected with the West Nile virus?
7. What are the symptoms of the West Nile and Zika viruses?
8. When the city does spray, what area(s) will be sprayed and at what times?
9. What is known about the effects on dogs and cats?
10. How can I find out what cases have been confirmed?
11. Does the City of Frisco spray for mosquitoes?
12. How will the city alert the public of areas to be sprayed?
13. What is the chemical the third-party contractor would use when spraying?
14. Can I request that my residence / neighborhood be sprayed?
15. What precautions should I take when the city does spray?
16. Can the applicator turn off the sprayer at my house if I request so?
17. I live behind / just outside the radius circle noted. Will my house receive overspray?
18. I jog at night. What do I do if I see the fogging truck?
19. Will the chemicals affect my car, patio furniture, or pool water?