Fogging and MistingTreatment Best for Mosquito Pest Control

At group events, on camping trips, and during outdoor recreational activities, the presence of mosquitoes can be both an annoyance and a danger.

While pest management begins with you, effective mosquito control is often community-based. Contact your local health department or mosquito abatement district to report severe annoyance or potential mosquito sources.

Fog can be effective as a space treatment against adult mosquitoes. Do not fog during daylight hours. Fogging is effective as a contact application with no residual effect. Frequent applications are needed during heavy adult mosquito migrations.

Two Types of Foggers:

Thermal Foggers – These machines, which are only to be used outdoors, actually burn the pesticide to create smoke or a fog that repels and/or destroys the insect. A mixture of both pyrethrin and resmethrin (a synthetic or man-made pyrethrin) is used. It is most effective when the air is fairly still. The ideal condition for a thermal fogger is at dusk, when the air temperature is close to the ground temperature. It is important to ensure that your thermal fogging machine is placed away from vegetation.

Cold Foggers – Suitable for both indoor and outdoor use, cold foggers run on electricity and are used with a solution that is formulated specifically for this machine. Most cold fogger products are pyrethrin-based. This machine is considered a “cleaner” method of mosquito control.


Outdoor residential misting systems (sometimes called “mosquito misters”) are application systems designed to spray pesticides in a fine mist to kill mosquitoes and other insects outdoors. Misting systems include spray nozzles that are mounted around the perimeter of a home in the lawn or landscaping, or on parts of the house or fence. The spray nozzles are connected by tubing to a supply of insecticide. Some misting systems may be turned on at preset intervals using a timer. Others may be turned on using a remote controller, while others may be activated using a switch. The insecticide products most often used in outdoor residential misting systems contain pyrethrins and permethrin. These products may also contain piperonyl butoxide. To be sure what type of insectide you are using, check the list of active ingredients on the container label. People and pets may be exposed to pesticides used in a residential misting system through direct contact with sprays, by touching plants or other objects in the treated area, or by inhaling small amounts of…

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