Frequently Asked Questions

The City’s Mosquito Management Program will reduce pathogen-transmitting mosquito populations by utilizing scientifically proven strategies that control mosquito’s population through population surveillance, larvae control, adult mosquito control, and public education.

The City wants to know:

1. Is spraying twice per week effective at reducing mosquito populations?  
2. Is the chemical used in the spray effective at reducing the mosquito population?  
3. Are beneficial insects negatively affected by the current spray program? 
4. Are there specific changes that would optimize the effectiveness of the City’s mosquito control efforts?

The City currently sprays up to twice a week.

The City contractor uses Kontrol, which is a general-purpose pesticide containing 30% Permethrin and 30% Piperonyl Butoxide (PBO). The City contractor also uses Fyfanon, a rotational insecticide containing Malathion 96.5% to prevent resistance in the mosquito population.

To find more about the chemicals currently being used in the spray, click here.

The study will commence on May 5^th, 2025. Once started, the study will last 9 weeks. The regular spray schedule will resume while the City analyzes the study results.

Study sites are chosen based on the existing spray zones. These sites have established mosquito traps and are regularly monitored by the City.

The City has an ongoing larvicide program which is effective at reducing mosquito larvae in our waterways. This program will not be affected by the study and will continue as normal.

Public health is the City’s top priority. If a positive West Nile Virus is detected in a mosquito in your area, we will spray for mosquitoes following established protocols.

The mosquito spray will have a dispersal radius of 150 feet. Learn more about truck spraying.

We will coordinate with your HOA so the spray days do not overlap. Extra sprays by your HOA will not affect the results of this study.