How can I eliminate mosquitos? – Environmental Health Services

You can help eliminate mosquitoes by removing stagnant water from these common backyard sources:

Clogged rain gutters
Neglected or out-of-order swimming pools, hot tubs, ponds, or fountains. IMPORTANT: Adding chlorine will not prevent mosquito breeding. Pumps and filters must work properly to prevent breeding.
Containers such as rain barrels, can, buckets, jars, flower pots, etc.
Old tires
Anything that will hold water for more than seven days.

(Information on this page obtained from the Centers for Disease Control and Prevention).
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