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Where to look and what to do 

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Are you raising mosquitoes?


  • Out-of-service swimming pools, plastic kiddie pools, and spas can breed thousands of mosquitoes.
  • Any items that hold water can breed mosquitoes. Shown above: horse trough, open boat, outdoor faucet, old tire, wagon, wheelbarrow, grill and tarp. 
  • House rain gutters often get clogged with leaves. This decaying vegetation will feed developing mosquito larvae. 
  • Neglected or non-circulating ponds are ideal for mosquito production. Change the water in bird baths weekly.
  • The overflow saucer under flower pots can hold enough water to support mosquitoes. 
Ornamental Ponds

Stock with mosquito fish, which are available free of charge to the public at our office. Add goldfish for looks if desired, but they do little for mosquito control. Avoid spraying with garden insect sprays. Remove leaves and thin out pond lilies. Keep water level up. Screen inlet of recirculation pump. Chlorine kills fish- transfer fish to glass bowl when cleaning pond. If pond is no longer desired, break holes in bottom and fill with dirt or sand.

Concrete or Plastic Swimming Pools

Operate filter and skimmer everyday to remove egg rafts and larvae. Provide drainage for filter and pumps. Chlorine will NOT kill mosquito larvae. If a pool cover is used, keep it tightly sealed. Remove rainwater from the top of the pool cover. Stock "out-of-order" pools with mosquito fish.

Prevent accumulation of bilge water. Store small boats upside down or cover to keep out rain and water from sprinklers.