More Community-based Mosquito Spraying Sunday Night

Communications Director

Kristin Farley
(865) 215-2589

400 Main St., Room 691
Knoxville, TN 37902

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More Community-based Mosquito Spraying Sunday Night

Posted: 09/25/2009
The latest lab report has confirmed the presence of West Nile Virus in mosquitoes in the Cumberland Estates area of Northwest Knox County.

Cumberland Estates subdivision, meaning all areas within Royalview Road, Robindale Road, Willowdale Drive, Silverhill Drive, Newberry Road, Landon Drive and Palmetto Boulevard, will be sprayed this Sunday, Sept. 27, between 9 p.m. and midnight by Knox County Health Department (KCHD) vector control staff. Five other areas also will receive follow up spraying recommended by the national Centers for Disease Control and Prevention (CDC) The areas have been previously identified as Milligan Street (East Knox), Fourth Avenue (I-275 area), Carter Community Park, Alcoa Highway and Fort Sanders. (Maps are attached for your reference.)

KCHD follows CDC protocol, and WNV affected areas are sprayed to reduce the mosquito population and the risk of further spreading WNV. Follow up spraying will be on Sunday, Oct. 4, if temperatures stay above 50 degrees. Signs have been erected in the affected areas to alert residents who are asked to stay inside during spraying. 
"Temperatures are predicted to start dropping into the fifties at night next week and that should give us some relief. Also, spraying is not recommended below 50 degrees, so we really hope mosquito season is on the way out," said Ronnie Nease, KCHD director of Environmental Health. "But until then, the advice is the same: use repellent and wear appropriate clothing when mosquitoes are active. That's the best way to protect yourself from mosquito-borne illness." (NOTE: More mosquito control tips are below for your reference.)

To address the public health concerns caused by mosquitoes, Knox County Health Department (KCHD) conducts a mosquito control program during the summer months. Every year, as the weather begins to warm, KCHD public health professionals begin trapping mosquitoes around the county, testing batches weekly for West Nile Virus, a mosquito-borne disease which can infect humans, horses and birds. WNV affected areas are sprayed with an approved mist when needed to reduce the mosquito population. Application is recommended between the hours of 9 p.m. to midnight when mosquitoes are most active. From early in the spring until the first frost, larvicides also are used in areas with standing water to prevent mosquito proliferation.


Eliminating breeding areas is an important factor in controlling the mosquito population. KCHD urges the public to reduce breeding sites around their homes by following these tips:

Dispose of, regularly empty, or turn over any water holding containers on your property such as tires, cans, flowerpots, or trashcans. Drill holes in the bottom of recycling containers that are left outdoors. Make sure roof gutters drain properly and water doesn't stand in them. Change the water in birdbaths at least once a week. Turn over plastic wading pools and wheelbarrows when not in use. Keep swimming pools, outdoor saunas and hot tubs clean and properly chlorinated; Remove standing water from pool covers.


It also is important for residents to take necessary precautions against West Nile Virus during outside activity, either by proper clothing or insect repellant. The best way to protect yourself and your family is to keep mosquitoes from biting you. During mosquito season (generally April through October), take the following precautions:

Limit outdoor activities between dusk and dawn, if possible, since this is the time of greatest mosquito activity. If you are outside when mosquitoes are prevalent, wear protective clothing such as long pants, long-sleeved shirts and socks. Use a mosquito repellant that contains DEET (the chemical N-N-diethyl-meta-toluamide); and Follow the directions on the label. If you are concerned about using repellent products on children you may wish to consult a health care provider for advice or contact the National Pesticide Information Center (NPIC) through their toll-free number at 1-800-858-7378 or

More information on the mosquito control program and the treatment schedule are available by calling 215-5200 or online at KCHD also provides the West Nile Virus Fact Sheet and the Public Health Fact Sheet discussing insect bites and repellents. All informational materials may be reproduced and distributed as needed. A Mosquito control technician is available to discuss mosquito control at community groups or neighborhood association meetings.

Knox County Health Department (KCHD) is committed to promoting public health policies and practices that safeguard and improve quality of life for all residents. KCHD offers an array of resources, including medical and dental services, family planning, disease surveillance and control, emergency preparedness, air quality management, environmental services, food preparation oversight in public places, special nutritional programs for women with children and much more. For more information, visit Information on flu is available at