What the City Does

Mosquito Surveillance

During mosquito season, each week up to 19 mosquito traps are placed strategically throughout the city to survey the total numbers of mosquito species and mosquito-borne disease. In addition, property investigations are done at the request of a citizen or City employee or when an inspector identifies an area with potential vector issues. See Permanent Trapping Sites.

Vector Management

Mosquitoes are controlled on public property by eliminating the breeding source, applying pesticides to stagnant water and spraying as necessary. The City does not treat private property for insect or rodent problems.

Physical Control

Physical control consists of eliminating mosquitoes by disrupting mosquito habitats. Examples include eliminating stagnant water, mowing grassy areas, and keeping gutters and drainpipes clear of leaves and debris.

Biological Control

Many naturally-occurring fish are predators of mosquito larvae. Fish of almost any kind will eat mosquito larvae, but mosquitofish (Gambusia affinis) are preferred for controlling mosquitoes due to their higher tendency to consume mosquito larvae. The City of Plano will determine locations most suitable to introduce mosquitofish as a biological control. Chosen locations are monitored throughout the mosquito season.

Chemical Control

When a sample from one of the City’s traps tests positive for a mosquito-borne disease, the City will spray an EPA-approved adulticide within a specific area surrounding the trap that contained the positive sample. See Map of Spray Zone. Another effective measure used by City staff is the application of EPA-approved larvicide in identified mosquito breeding areas or stagnant water.

Public Information and Education

The City uses press releases, brochures, websites and one-on-one consultations to communicate strategies for preventing or eliminating vectors on private property.