Public Health: Spraying for mosquitoes in Tarrant County
Tarrant County Public Health
Tarrant County Public Health
  | 1115 Healthcare Transformation Waiver | About Us | Client Services | Community Youth Development | Disease Prevention & Control | Environmental/Consumer Protection | Fetal and Infant Mortality Review | Health Data & Information | Health Education | Health Policy | HIPAA | News Items & Publications | Nurse-Family Partnership | Obesity Prevention | Press Releases | Public Health Alerts / Recalls | Public Health Preparedness | Service Locations | Special Events & Activities | Travel Health Services | VFC Provider Info | Public Health | Home | Director's Message | Mission and Vision | Staff Directory A-M | Staff Directory N-Z | Ten Essential Services of Public Health | 2004 Press Releases | 2003 Press Releases | 2002 Press Releases | Administration Office: Tarrant County Public Health Main Campus | Arlington Public Health Center | Bagsby-Williams Public Health Center | Northeast Public Health Center | Northwest Public Health Center | S. S. Dillow Elementary Public Health Center | Southlake Travel Health Services | Southwest Public Health Center | Town Center Mall Public Health Center | Breast & Cervical Cancer Screening | Child Safety Seat Information | Family Planning Services | Health Insurance Continuation Program | HIV/AIDS Preventive Medicine Clinical Services | Immunizations | Refugee Health Screening | Sexually Transmitted Diseases (STD/HIV) | Travel Health Services | Tuberculosis (TB) | Women, Infants and Children Program (WIC) | Chronic Disease & Injury Prevention | Disease Reporting & Investigation | Health Alert Network | West Nile Virus | AIDS Perspective Newsletters | Health Intelligence Center | Health Intelligence Center PDFs | Monitoring & Assessment Project (M.A.P.) | Air Quality | Drinking Water Information & Testing | High Lead Level Investigations | Milk and Dairy Product Testing | Septic System Inspections/Permitting | Storm Water Pollution Prevention | Swimming Pool Inspections | Texas SmartScape | Water Chemistry Testing | Adolescent Tobacco Cessation Program (ATCP) | Family Violence Prevention | Health Education Resources Center | Bioterrorism Agents and Disease Fact Sheets | Bioterrorism Links | Health Response Teams | Laboratory Capacity | Champions in Health | Teen VideoFest | News Archive | AIDS Perspective Newsletter | Eye on Epi Newsletter | Annual Reports | Informational Publications | HIV Counseling, Testing and Preventions Services | STD Clinical Services | HIV/AIDS Preventive Medicine Clinical Services | HIV Counseling, Testing and Preventions Services | About STDs | WIC Income Guidelines | Glossary of Terms Used in WIC | WIC Online Nutrition Information | Air Quality Index | How can I make a difference? | Subdividing Land / Plat Approval | Helping the Child who is a Bully | Helping the Child Who Is a Target of Bullying | Recognition | Contributions and Sponsorship | For Educational Use | How to get started on Teen Videofest | 2003 Video Finalists | 2004 News Archive | 2003 News Archive | 2002 News Archive Login | Register | Show Images | Home 
{Tarrant County Public Health - Safeguarding Our Community}


Spraying for mosquitoes in Tarrant County


Tarrant County has received comments and questions about aerial spraying in our area. We want to do our best to ensure that people understand Tarrant County’s current response, which can include ground or aerial spraying.

West Nile Virus is a real threat in the counties across North Texas. Tarrant County Public Health (TCPH) is following a series of progressive steps to address West Nile Virus, following the recommendations of the Texas Department of State Health Services, the Centers for Disease Control and Prevention (CDC) as well as input from Tarrant County cities. These steps include:

·      working with cities that trap mosquitoes for testing by public health’s lab;

·      education and outreach by TCPH and the affected cities in areas with positive mosquito samples;

·      treating areas with infected mosquitoes by using larvacide to kill the mosquito eggs and/or using gambusia minnows to eat the eggs in areas where there is standing water;

·      investigating and reporting human case data to Tarrant County cities;

·      encouraging residents, businesses and governmental agencies to look for and drain any standing water in their respective areas; and

·      recommending targeted education in cities with human cases – like Reverse 9-1-1 or the Code Red communications systems.

Ground spraying to eliminate adult mosquitoes when they are active is one of the progressive steps available.  Currently, ground spraying is occurring or is planned in parts of Bedford, Benbrook, Euless, Fort Worth, Hurst and North Richland Hills. Aerial spraying is part of the progression, if targeted ground spraying is not effective. Grand Prairie -- located mostly in Dallas County -- is participating in aerial spraying.*

At this time, aerial spraying is not the preferred response in Tarrant County due to a number of reasons:

·      Dallas County has a higher incidence of the more severe form, the neuroinvasive type, of West Nile Virus, which can have a higher mortality rate than the fever. In contrast, West Nile Fever is the predominant form of the illness in Tarrant County

·      Cases of people who have tested positive for the virus are also concentrated in one large area in Dallas, while, in Tarrant, the cases are spread across a wide area of the county. In Dallas County, the areas where aerial spraying is being considered have 40-50 percent of the reported cases in the entire county

·      Aerial spraying is recommended for spraying large areas all at once and where localized disease has been identified, while ground spraying can be effective when addressing small pockets of disease, or clusters. Recently, small pockets have been identified in Fort Worth and Arlington and concentrated ground spraying is being considered.


Spraying by the aerial or ground methods can be effective, but one of the most effective steps in the progression begins with individuals eliminating mosquito breeding areas around their home and neighborhood. Other steps include using repellent, dressing appropriately to avoid being bitten when outdoors and avoiding being outside from dusk to dawn.


* (8/30/2012) The cities of Southlake, Westlake, Trophy Club, Roanoke and Haslet have accepted Denton County’s offer to participate in that county’s aerial spraying program.  All five cities are co-located in both Tarrant and Denton Counties.  The aerial spraying, which will include those parts of the cities located in Tarrant County, is scheduled to start tonight.


(8/23/2012) The City of Mansfield is planning on localized targeted ground spraying this week.


(8/20/2012) The City of Arlington has begun localized targeted ground spraying this week.


Content Last Modified on 8/30/2012 8:43:23 AM

Tarrant County Public Health, Main Campus
1101 S. Main Street, Fort Worth, TX 76104

Need help? Call Customer Service at 817-321-4700.


Privacy Policy   |  Accessibility Statement   |  Contact Webmaster
Media Inquiries    |   General Information   |  Public Information Act

County Telephone Operator: 817- 884-1111

Tarrant County provides the information contained in this web site as a public service. Every effort is made to ensure that information provided is correct. However, in any case where legal reliance on information contained in these pages is required, the official records of Tarrant County should be consulted. Tarrant County is not responsible for the content of, nor endorses any site which has a link from the Tarrant County web site.

100 E. Weatherford, Fort Worth, Texas 76196
Copyright 2001-2015 Tarrant County, TX