Sunday, August 29, 2010

Mosquito Fogging set for August 31-September 2

FLORENCE – Pinal County Environmental Health Services announced today that adult mosquito fogging will be conducted in four areas of the county beginning Tuesday, August 31. Mosquitoes trapped during routine surveillance for West Nile virus tested positive, resulting in the need to fog the area to prevent transmission of the disease to humans.
The area encompasses Battaglia Drive to the north, Sunland Gin Road to the east, Alsdorf Road to the south and Henness Road to the west.
Regional Park and Heartland Ranch: The area encompasses Martin Road to the south, Skousen Road to the west, East Vah Ki Inn Road to the north and 9th Street to the east.
The area encompasses Earley Road to the north, Henness Road to the east, State Route 84 to the south and Peart Road to the west.
The area encompasses the Copper Basin Subdivision of Hunt Highway to the west, Judd Road to the north, Union Pacific Railroad tracks to the east and Magma Road to the south.
**All fogging takes place between the hours of 12:00 AM and 5:00 AM because that is the time when the breed of mosquito that carries West Nile is most active.
The pesticide that will be used during fogging is called Anvil. It is a pre-mixed, ready-to-use product that contains two active ingredients: Sumithrin (2%) and piperonyl butoxide (2%). Sumithrin is a man-made version of a natural pesticide found in chrysanthemum flowers. Piperonyl butoxide enhances the ability of Sumithrin to kill mosquitoes. Anvil is registered with the US Environmental Protection Agency and is effective against the mosquitoes that carry West Nile virus.
There are several things that residents can do to reduce exposure during fogging:

  • Close all windows and doors. Air conditioners can still be operated, but if they have vents to bring in outside air, they should be closed. Turn off evaporative coolers.
  • Stay inside your home.
  • If possible, bring pets inside.
  • Thirty minutes after the end of the scheduled fogging each night, you may resume normal activities.

West Nile virus is transmitted to humans and animals through the bite of an infected mosquito. West Nile virus can cause severe illness in people and horses, although not everyone who is infected will develop symptoms. People of all ages can be affected however, the elderly may be more prone to serious illness. County health officials urge all county residents to "Fight the Bite" and follow these simple personal precautions to avoid mosquitoes and the diseases they may carry:

  • Avoid outside activity between dusk and dawn, when mosquitoes are most active.
  • If you must be outdoors when mosquitoes are active, wear lightweight clothing that covers your arms and legs and use an insect repellent containing an EPA registered active ingredient such as DEET, Picaridin or oil of lemon eucalyptus. Always follow the directions on the label.
  • Make sure doors and windows have tight-tighting screens and remain closed. Repair or replace screens that have tears or holes in them
  • Eliminate mosquito-breeding sites around the home by removing standing water in potted plants, tires, bird baths and other containers where water may collect.
  • Ensure that swimming pools and decorative water features are properly maintained.

Change water in flowerpots, bird baths and pet watering bowls located outdoors at least twice per week.
The County has a mosquito hotline and a webpage. If you would like information on mosquito prevention and control, please call: 866-287-0209, ext. 6200, or visit the West Nile virus webpage at If you notice any green or abandoned pools, you can call and report the information to the mosquito hotline.

For information or questions concerning the health effects of West Nile virus, please call the Pinal County Public Health Information Hotline: 866-763-7252.