It is the responsibility of the property owner to prevent mosquito breeding sources on their property. In the event a breeding source is found, the owner must remove the problem and take steps to prevent the recurrence of breeding.
The immature stages of the mosquito (egg, larva, pupa) develop in standing water. It takes seven to ten days from the time a mosquito lays her eggs, until 100 to 400 larvae (wrigglers) begin their life, possibly in your backyard. The size of the container of water doesn't matter, as mosquito larvae and pupae are small.
Where to Look and What to Do
If you need assistance or have questions about a mosquito breeding source around your home, contact your local code enforcement agency.
Concrete or Above Ground Swimming Pools
Chlorine will not always kill mosquito larvae.
If pool cover is used, keep it tightly sealed.
Remove rain water from top of pool cover.
Stock unused or "out-of-order" pools with mosquito fish.
Plastic Wading Pools
Change water every week.
Store indoors or upside down when not in use.
Stock with fish.
Avoid spraying with garden insect sprays.
Remove leaves and thin out plants.
Keep water level up.
Screen inlet of recirculation pump.
Transfer fish to glass bowl when cleaning pond because chlorine kills fish.
If pond is no longer desired, break holes in the bottom and fill with dirt or sand.
Prevent accumulation of sprinkler or rainwater.
Store small boats upside down or cover to keep out the rain and water from your sprinklers.
Animal Water Troughs
Stock large troughs with mosquito fish.
Clean small troughs every week.
Containers (cans, jars, barrels, old tires, buckets, tubs, etc.)
Remove and dispose of all unused containers that will collect rain water or water from your sprinklers.
Home gardeners rooting plant cuttings in vases, buckets, etc. should change water every week.
Usable containers should be stacked upside down.
Other Sources of Standing Water
Under the house
Repair leaking plumbing
Prevent seepage from garden irrigation
Divert storm water away from foundations
At drain outlet from air conditioner
Keep rain gutters clean and free of debris so water drains properly.
In the Community
Contact your local code enforcement office if you see any standing or green water in the community, such as:
Excess irrigation drainage water
Water standing in pastures and irrigation ditches
Community or Industrial Sources
Wastewater treatment plants
Storm drainage channels
Improperly drained golf courses
Green fountains or pools
Fish Help Prevent Mosquitoes
Most fish eat mosquito larvae and are useful in keeping ornamental ponds free of mosquitoes. Gambusia affinis, called "mosquito fish," eat mosquito larvae as fast as they hatch from the eggs laid by the mosquito. Mosquito fish are used to stock mosquito breeding sources, such as:
Unused or "out-of-order"
Animal water troughs
Pools of standing water
They require no special feeding, and care is limited to protecting them from garden sprays and from chlorine or chemicals used to clean the pond. Mosquito fish do not lay eggs, but give birth to well developed and very active young. They breed throughout the summer and a new brood is produced at intervals of about four to six weeks.
Approximately 100 young are in a single brood, each about one-half inch in total length when born. They are ready to begin the work of destroying mosquito larvae at once.
Gambusia grows rapidly, reaching a maximum size of about 2 inches. The earliest broods of the season, born in April and May, become sexually mature and produce young when 4 to 5 months old.
Please contact our office at (702) 759-1633 to pick some fish up for free.