2015 Mosquito Surveillance & Control - WNV Prevention

Posted by Mike Pastor on Oct 15, 2015
Tags: Community, Denton County, Government, Public Health, Parks, West Nile Virus, Water, Town News

Update (December 2, 2015) --- Denton County Health Department officials have confirmed two human cases of West Nile Virus (WNV) in Trophy Club. One resident lives on Pebble Beach and the other lives on Sherwood, and both contracted the milder form of the virus (West Nile fever). Officials believe the individuals were likely bit in October and diagnosed in November.

So far in 2015 Denton County has eight (9) confirmed human cases and Trophy Club has two (2) of those cases.


Update (October 15, 2015) --- A mosquito sample collected at Trophy Club Drive and Trophy Park Drive tested positive for West Nile Virus (WNV). Out of the 100 specimens tested from the site, one tested positive. Larviciding efforts have been stepped up and truck-mounted ground spraying (adulticiding) will take place Friday, October 16 and Saturday October 17 evenings between 9:00 p.m. and 5:00 a.m. Ground spraying will occur in a 1/2 mile radius of where the positive mosquito sample was collected.

Click here to view the proposed truck mounted spraying zone.


Update (October 1, 2015) --- A mosquito sample located at Trophy Club Drive and Durango tested positive for West Nile Virus (WNV). Out of the 100 specimens tested from the site, one tested positive. Larviciding efforts have been stepped up and truck-mounted ground spraying (adulticiding) will take place Friday (October 2) and Saturday (October 3) evenings between 9:00 p.m. and 5:00 a.m. Ground spraying will occur in a one-mile radius of where the positive mosquito sample was collected.

Click here to view the proposed truck mounted spraying zone.


Update (August 20, 2015) --- A mosquito sample located at Indian Creek and Edgemere tested positive for West Nile Virus (WNV). Larviciding efforts have been stepped up and truck-mounted ground spraying (adulticiding) will take place Friday (August 21) and Saturday (August 22) evening between 9:00 p.m. and 5:00 a.m. Ground spraying will occur in a one-mile radius of where the positive mosquito sample was collected. 

Click here to view the proposed truck mounted spraying zone.

Fact Sheet regarding fogging, including what to do with pets.


Update (August 13, 2015) --- A mosquito sample located at Trophy Club Drive and Durango tested positive for West Nile Virus (WNV). Out of the 98 specimens tested from the site, one tested positive. Larviciding efforts have been stepped up and truck-mounted ground spraying (adulticiding) will take place Friday (August 14) and Saturday (August 15) evening between 9:00 p.m. and 5:00 a.m. Ground spraying will occur in a one-mile radius of where the positive mosquito sample was collected. 

Click here to view the proposed truck mounted spraying zone.

Fact Sheet regarding fogging, including what to do with pets.


Update (May 28, 2015) --- A mosquito testing site located just south of Harmony Park yielded a positive test result for a mosquito infected with West Nile Virus (WNV). Larviciding efforts have been stepped up and truck-mounted ground spraying (adulticiding) will take place Friday (May 29) and Saturday (May 30) evening between 9:00 p.m. and 5:00 a.m. Ground spraying will occur in the area where the positive mosquito sample was collected only. 

Click here to view the proposed truck mounted spraying zone.

In the meantime, please make sure to drain any containers holding water on your property and practice the prevention methods outlined below.  


April 24, 2015 --- The Town has contracted with an independent company specializing in mosquito surveillance and abatement for the 2015 mosquito season: May 1 - October 31, 2015. The Mosquito Management Program includes weather monitoring, activity reports, inspection and larvicide treatment of known mosquito development sites, storm water catchbasin inspection and treatment, adult mosquito surveillance (three traps located in known mosquito areas) and weekly testing of trapped samples. The contract does not include adulticide treatment (fogging), which would only be implemented if necessary.

Visit the following county websites for West Nile Virus (WNV) Reporting Updates:

Prevention is Key
Although West Nile Virus (WNV) infections are rare in humans, personal protection is very important, especially for those who are 50 and over. Residents should take the proper precautions to reduce the risk of getting the mosquito-borne WNV by remembering the Four D's: dress, defend, dusk/dawn and drain.

  • DRESS to avoid mosquito bites by wearing long, loose and light-colored clothing when outside;
  • DEFEND yourself by using insect repellents approved by the EPA or CDC;
  • DUSK to DAWN outside activities should be avoided when possible, and especially if one isn’t dressed and prepared with repellent; and
  • DRAIN all areas of standing water in and around the home, including wading pools, pet dishes and birdbaths

Citizens should also make special efforts to reduce potential mosquito breeding areas within their yards and within their neighborhoods. Eliminate any standing water that collects on your property, for example, drain tires, cans, flowerpot saucers or anything else that holds water. Make sure gutters drain properly and clean gutters regularly. Change the water in birdbaths at least once a week. Use BTI briquettes, or larvicide briquettes, in standing water. BTI is a biological control agent that is very specific for killing mosquito larvae (available at home improvement and hardware stores).

The Denton County Health Department Health Emergency Alert Response Team (HEART) provides coordination and support for state, federal and local health agency response to urgent and emergent public health threats. For general questions about West Nile virus in humans please call the Denton County Health Department's West Nile Hotline at 940-349-2907. For general questions about West Nile virus in animals, please call the Texas Cooperative Extension at 940-349-2882.

If you believe you are experiencing any West Nile Virus symptoms such as high fever, severe headache, disorientation, and/or neck stiffness, immediately contact your doctor or health care provider. If you do not have a health care provider, please contact your local emergency room or urgent care center.