How you can help stop mosquitoes on your property
The combined efforts of any mosquito abatement program cannot succeed without the
assistance of the public. Since disease carrying mosquitoes develop in stagnant water,
places that can hold water for more than a week are potential sources of mosquitoes. Many
potential breeding sites can be found around the home. These include old tires, buckets,
wheelbarrows, clogged rain gutters, childrens’ wading pools, etc. In addition, disease carrying
mosquitoes are “home bodies” and tend to stay near their breeding sites. Residents can take
the following simple steps to eliminate potential sources for these mosquitoes.
• Throw away all trash that can hold water (cans, jars, tires, etc.).
• Clean rain gutters and downspouts to prevent water from standing in gutters or on flat
• Change water in bird baths, wading pools, etc. at least once a week. Maintain swimming
• Keep ditches and streams on or around property free of grass clippings, garbage, and
other debris to insure proper flow.
• Stack pails, barrels, tubs, wheelbarrows, and similar containers upside down.
• Stock ornamental ponds with goldfish or other surface-feeding fish to control
• Clean out and fill treeholes.
• Dispose of used tires properly. The District is a licensed waste tire hauler, and is able to
take tires to a shredding facility. For residents with four or fewer tires to dispose of,
contact the District for assistance.
• Notify the District of areas of standing water that stays for more than one week that you are
unable to eliminate.
Personal protection from mosquitoes
Residents are encouraged to use a common sense approach in avoiding exposure to adult
mosquitoes. Because mosquito species that may spread disease are not very aggressive, it
is important to protect against mosquitoes during the mosquito season even when mosquito
annoyance is low.
• Avoid outdoor activities around dusk, when mosquito activity is heaviest.
• If this is not possible, wear long sleeved shirts, pants, and socks. Light colored clothing
• Apply mosquito repellent containing 20-35% DEET primarily to clothing. Concentrations
of 10% or less are indicated for children aged 2-12. Use sparingly on exposed skin if
label permits. In addition to DEET, the federal Centers for Disease Control and Prevention
is recommending products containing picaridin and lemon of eucalyptus. Both have
proven to be effective mosquito repellents. When using any repellents, always follow
directions on the container.
• Window screens should be inspected and repaired if damaged to prevent mosquitoes from
entering the home. In addition, any openings around window air conditioners, clothes
dryer vents, etc. should be eliminated for the same reason.
Mosquito repellent and control products available to the public
In addition to the repellents described above, a number of mosquito control products are
available to the general public. These include:
• Products that kill mosquito larvae found in standing water. Active ingredients are usually
Bacillus thuringiensis israelensis(BTI) or the growth regulator methoprene.
• Products that kill mosquito adults. These provide short term relief from mosquito
annoyance useful for backyard cookouts etc. These take the form of aerosols or special
fogger units. Active ingredients are usually synthetic pyrethroids.