The City utilizes a truck-mounted applicator that disperses an ultra-low-volume mist into the air. Pesticides used are registered with the US Environmental Protection Agency (EPA) and are chosen based on their ability to have a maximum effect on target organisms while having a minimal effect on humans, pets, and the environment.   

The start of mosquito season varies and is affected by factors such as weather and temperature.   

The City of Corpus Christi-Public Health District will spray from March until October.    

Adult female mosquitoes lay eggs on the inner walls of containers with water, above the waterline. Eggs stick to container walls like glue. Eggs can survive drying out for up to 8 months. Mosquitoes only need a small amount of water to lay eggs. Bowls, cups, fountains, tires, barrels, vases, and any other container storing water make a mosquito breeding ground.   

Larviciding, the control of mosquito larvae before they become adults, is conducted from 8 a.m. to 5 p.m. Adulticiding (spraying), the control of adult mosquitos that are nuisances, is conducted during evening hours from 8 p.m. to 5 a.m.   

Previous truck-mounted applicators were limited to 10mph. New machines can travel up to 20mph and cover twice the linear miles. They operate with an automatic variable speed control system which puts out the maximum level of pesticide allowed at twice the speed. It helps us cover more space.  

It is spraying of chemicals (pesticides) to kill adult mosquitoes that cause nuisances.

One form of Larvicide utilized by our Vector Control program is an oil-based chemical which is used to kill mosquito larva before they turn into adults.  

Larvicide is applied on standing or stagnate.

Larvicide also comes in what we call “doughnuts or dunks” which is more environmentally friendly. The technicians throw these dunks into bodies of water that they are prohibited from using the oil on.

Vector Control has mosquito traps in locations known to be breeding grounds for mosquitos.   

These traps are checked daily by the Technicians and based off the total mosquitos found inside the traps is how we determine where to spray.    

The City puts out a weekly schedule of mosquito spraying. Registering for the news release email notification or follow us on social media to view the latest mosquito spraying schedule: visit news.cctexas.com.

Please call 311 to report abandoned property, high grass, or standing water.

Make sure grass and shrubs are properly trimmed.  Mosquitoes breed in stagnant water, so help reduce mosquito breeding grounds by draining any standing water, including water that collects in empty cans, tires, buckets, clogged rain gutters, and saucers under potted plants.

Please use the interactive map to identify which route you live in.

If you do not see your route, then the trap counts in your area where not above the identified spraying thresholds. 

When the spraying (adulticide) for adult mosquitoes they work 8 p.m. - 5 a.m.  

When applying Larvicide it is during normal hours 8 a.m. - 5 p.m. 

Vector Control does not enter private communities, gated communities, apartment complexes.  

Mosquito control is the responsibility of the HOA or manager of the complex. 

The chemical used by Vector Control is prohibited from being sprayed in any area where it may impact crops being grown. 

The technicians turn off the spray if they see citizens outside. So, if you see the truck coming go inside so we can spray your street or area.