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Vector Control - West Nile Virus, Zika and other Mosquito-borne illnesses
*NEW* Tarrant County Public Health has released a new video addressing what residents can do around their properties to protect themselves from mosquitoes.  See it HERE.

*NEW* Zika and West Nile Virus - A Comparison

The City of Grapevine has provided a document comparing the mosquitoes that may carry the two different diseases HERE.

*NEW*
Zika - What You Need to Know

The City of Grapevine is working with Tarrant County Public Health in responding to imported cases of the Zika virus.  As of late June 2016, there have been no cases of locally transmitted (via mosquito) Zika cases in the U.S.  There have been numerous imported (illness acquired outside of the U.S.) cases of Zika in North Texas, however.

In an effort to prevent the potential localized transmission of the Zika virus in Grapevine.  The City, in conjunction with Tarrant County, has increased monitoring of populations of Aedes mosquitoes, the Genus of mosquito that is known to transmit the Zika virus in other countries.  This mosquito has different habits than those that carry WNV in that they actively hunt in the daytime (not just dusk and dawn) and they primarily feed on humans (Culex mosquitoes primarily feed on birds).  Aedes mosquitoes are weaker flyers than Culex mosquitoes, so they tend to hang around where people are, not straying
too far away.

Additionally, residents can help protect themselves by following a modified version of the WNV protection Four D's (see below), including:
  1. 1.  If you must be outside, where light color clothes and cover as much of  your body as possible.
  2. 2.  Use a bug repellent containing DEET at all hours of the day, not just dusk and dawn.

The City of Grapevine has provided an Anti-Mosquito Yard Inspection form HERE for your use.

For additional information check the following websites:

Tarrant County Public Health Department -
Zika Virus
Centers for Disease Control - Zika Virus

West Nile Virus (WNV) - What You Need to Know

*NEW*
City of Grapevine West Nile Virus Web App is here!  Keep up-to-date on all of the City's mosquito and WNV information! 

Grapevine, in conjunction with Tarrant County, continues to take a proactive stance to prevent the spread of West Nile Virus with the following measures:
  1. Mosquito trap testing at five fixed locations.  Trap testing at one "rotating" site (new spot each week) that is used to assess areas of concern.         
  2. Testing mosquitoes weekly for West Nile Virus (WNV).
  3. Sampling and testing April through November.
  4. Offering mosquito larvicide (kill mosquito) "dunks" to residents to place in standing water. The dunks are available at our Municipal Service Center (501 Shady Brook Drive).
  5. Continuing the public education process and participating with Tarrant County and other cities in that effort.
  6. Actively monitoring public property for standing water and enforcing regulations against standing water on private property. To report standing water, please call 817.410.3330.
  7. In the event of West Nile Virus positive samples, we follow Tarrant County Public Health recommendations for ground spraying.  
  8. In the event that we spray, residents are notified via Code Red phone call, the website, Facebook and Twitter in advance. To register to be notified via Code Red, please complete this form: http://bit.ly/1w48zKt.

June 29, 2016 - Positive West Nile Virus samples detected in the 3000 block of Meadowmere Lane1500 block of North Dooley Street and the 300 block of West Dallas Road.  Mosquito control ground spraying will take place on Thursday, June 30 beginning at 10pm.

July 6, 2016 - Positive West Nile Virus samples detected in the 1500 block of North Dooley Street, the 300 block of West Dallas Road, the 2600 block of Briarwood, the 2400 block of Mustang Drive and the 1100 block of Shady Lane in Southlake. The 300 block of Dallas Road and the 1500 block of North Dooley Street will both be ground sprayed within a half mile radius on three consecutive nights beginning on Thursday, July 7 at 10 PM (and again on Friday and Saturday at 10 PM). The 2600 block of Briarwood Drive and the 2400 block of Mustang Drive will both be ground sprayed within a half mile radius on Thursday, July 7 at 10 PM. The 100 block of Shady Lane will be sprayed within a half mile radius on Friday, July 8 at 10 PM. 

July 13, 2016 - Positive West Nile Virus samples detected in the 3000 block of Meadowmere Lane. Mosquito control ground spraying will be conducted within a half mile radius on Thursday, July 14 at 10 PM.

July 20, 2016 - Positive West Nile Virus samples detected in the 300 block of Dallas Road and also in the 1800 block of Hall-Johnson Road.  Mosquito control ground spraying will be conducted within a half mile radius on Thursday, July 21 at 10 PM.

July 27, 2016 - Positive West Nile Virus samples detected in the 300 block of Dallas Road, the 1800 block Hall-Johnson Road, 2700 block of Whitby Lane and the 3000 block of Meadowmere LaneBoth the 2700 block of Whitby Lane and the 3000 block of Meadowmere Lane are scheduled for mosquito control ground spraying within a half mile radius on Thursday, July 28 at 10 PM. The 300 block of Dallas Road and the 1800 block of Hall-Johnson Road will be sprayed within a half mile radius on three consecutive nights (due to repeat positive samples), beginning Thursday, July 28 at 10 PM, again on Friday, July 29 at 10 PM and on Saturday, July 30 at 10 PM.

August 4, 2016 - Positive West Nile Virus samples were detected in the 300 block of Dallas Road, the 2700 block of Whitby Lane the 2600 block of Briarwood Drive and the 1500 block of N. Dooley Street. Mosquito control ground spraying will take place within a half mile radius of the 2600 block of Briarwood Drive and the 1500 block of N. Dooley Road on Thursday, August 4 at 10 PM. The 2700 block of Whitby Lane and the 300 block of Dallas Road will be sprayed within a half mile radius on three consecutive nights (due to repeat positive samples), beginning Thursday, August 4 at 10 PM, again on Friday, August 5 at 10 PM and on Saturday, August 6 at 10 PM.

August 31, 2016 - Positive West Nile Virus samples were detected in the 300 block of Dallas Road, the 3000 block of Meadowmere Lane and the 1500 block of N. Dooley StreetMosquito control ground spraying will take place within a half mile radius of each area on Thursday, September 1 at 10 PM.   

September 7, 2016 - Positive West Nile Virus samples were detected in the 300 block of Dallas Road, the 3000 block of Meadowmere Lane and the 2600 block of Briarwood Drive.  Mosquito control ground spraying will take place within a half mile radius of the 2600 block of Briarwood Drive on Thursday, September 8 at 10 PM. The 300 block of Dallas Road and 3000 block of Meadowmere Lane will be sprayed within a half mile radius on three consecutive nights (due to repeat positive samples), beginning Thursday, September 8 at 10 PM, again on Friday, September 9 at 10 PM and on Saturday, September 10 at 10 PM.

September 14, 2016 - One positive mosquito sample tested positive for carrying the West Nile Virus in the 3000 block of Meadowmere Lane.  Mosquito control ground spraying will take place within a half mile radius of the 3000 block of Meadowmere Lane on three consecutive nights due to repetitive positive samples.  Ground spraying will take place on Thursday, September, 15, Friday, September 16 and on Saturday, September 17 at 10pm. 

September 21, 2016 - A Positive West Nile Virus sample was detected in the 1100 block of Shady Lane in Southlake.  This area borders Grapevine. Mosquito control ground spraying will take place within a half mile radius of the 1100 block of Shady Lane on three consecutive dates, Thursday, September 22, Friday, September 23 and Saturday, September 24 at 10 PM.

Prevention by following the 4 D's is the best way to slow the spread. 

Try to stay indoors during (1) dusk and dawn, (2) dress appropriately (long sleeves and long pants when possible), wear (3) bug repellent with DEET and (4) drain standing water.

Spraying Adulticides takes place in areas where vector mosquito(s) are detected to have tested positive for the West Nile Virus.  

For more resources on West Nile Virus and printable educational materials visit:


Tarrant County 
Tarrant County Interactive Mapping Tool
Center for Disease Control 
Texas Department of Health