University of Kentucky College of Agriculture





Female Asian tiger mosquitoes:

  • are not strong fliers, they stay near their breeding sites.
  • prefer to bite ankles and the lower leg. Don't forget to protect these areas with repellents.
  • also bite around the head, neck, and arms.

The Centers for Disease Control advises everyone, especially in the Southern states to protect themselves from mosquito bites by using repellents containing 1 of 4 active ingredients: DEET, Picaridin, Oil of lemon eucalyptus, or IR3535 and protective clothing.

According to the U.S. Zika response plan, Zika transmission is defined as two or more cases not due to travel or sex with an infected person that occur in a 1 mile diameter over the course of a month.

What 's new?

Culex species mosquitoes and Zika Virus (ZIKV) Abstract - Recent reports of Zika virus (ZIKV) isolates from Culex species mosquitoes have resulted in concern regarding a lack of knowledge on the number of competent vector species for ZIKV transmission in the new world. Although observations in the field have demonstrated that ZIKV isolation can be made from Culex species mosquitoes, the detection of ZIKV in these mosquitoes is not proof of their involvement in a ZIKV transmission cycle. Detection may be due to recent feeding on a viremic vertebrate, and is not indicative of replication in the mosquito. In this study, susceptibility of recently colonized Culex species mosquitoes was investigated. The results showed a high degree of refractoriness among members of Culex pipiens complex to ZIKV even when exposed to high-titer bloodmeals. Our finding suggests that the likelihood of Culex species mosquitoes serving as secondary vectors for ZIKV is very low, therefore vector control strategies for ZIKV should remain focused on Aedes species mosquitoes. Our demonstration that Culex quinquefasciatus from Vero Beach, FL, is refractory to infection with ZIKV is especially important and timely. Based on our data, we would conclude that the autochthonous cases of Zika in Florida are not due to transmission by C. quinquefasciatus, and so control efforts should focus on other species, logically Aedes aegypti and Aedes albopictus. Yan-Jang SH, VB Ayers, AC Lyons, I Unlu, BW Alto, LW Cohnstaedt, S Higgs, and DL Vanlandingham. VECTOR-BORNE AND ZOONOTIC DISEASES
Volume 16, Number 10, 2016 (Posted 3/27/17)

Not All Insect Repellents Are Equally Effective - Study 3/27/17 Products with DEET or oil of lemon eucalyptus, which contains an ingredient known as PMD, are more effective at repelling the Aedes aegypti mosquito that carries Zika, chikungunya, yellow fever and dengue, researchers found.

HHS Officials: Important progress on Zika, but much work ahead 10/4/16

Double dose of pesticides stops Zika mosquitoes, CDC says 9/27/16

Barrier applications for mosquito suppression in the suburban landscape (Slide share) 7/14/16

Protect Yourself From Mosquitoes This Summer (Press release) 7/13/16

Mosquito Prevention Begins at Home (Press release) 7/13/16

Protect Yourself and Your Family at Home (Press release) 7/13/16

Zika Response Prevention Kit Flyer (CDC poster ) 7/13/16

Summer Travelers Should Protect Themselves Against ZIka (Press release) 7/13/16

Fight The Bite T-shirt Logo (Press release) 7/13/16


Zika Public Service Announcement - Zika Prevention (2:19) - Ardis Hoven, MD Infectious Disease Specialist- Ky Dept of Public Health (6/30/16)

Zika Public Service Announcement - Problem Zones (2:45) - Kathy Fowler, Director- Division of Public Health Protection and Safety (6/30/16)

Zika Public Service Announcement - Protect Yourself (4:45) - Doug Thoroughman, Deputy State Epidemiologist for Ky (6/30/16)

Zika Public Service Announcement - Protect Yourself (2:21) - Shelley Wood, Nurse Consultant for Zika at the Ky Department for Public Health (6/30/16)

Zika Public Service Announcement - Mosquitoes and Pets (2:41) - John Poe, DVM- State Public Health Veterinarian (6/30/16)

Zika Public Service Announcement - Long version with all presenters (15:04) (6/30/16)


What is local transmission of Zika? (CDC poster ) 6/21/16

Zika: The basics of the virus and how to protect against it (CDC poster ) 6/15/16

Will "bugzappers" knock out mosquitoes? (5/27)

The Pollinator Stewardship Council: Mosquito abatement programs (3/27/177)

NIOSH Protecting workers from occupational exposure to Zika(5/18)

NIOSH Protecting workers from occupational exposure to Zika (Spanish) (5/18)


What do you know about Zika?- test your knowledge

Frequently asked questions about mosquitoes and Zika in Kentucky.

Aedes aegypti mosquitoes are more likely to spread viruses like Zika, dengue, chikungunya, and other viruses than other species of mosquitoes. Fortunately, it is very rare in Kentucky. The map below shows the Centers for Disease Control (CDC's) estimated range of Aedes aegypti based on where it occurs or has previously been found.

Estimated range of Aedes aegypti in the US (CDC 2016)

Aedes albopictus, the Asian tiger mosquito (ATM), occurs throughout the state and is a species of importance should local transmission occur in Kentucky. The ATM is an outdoor (garden) mosquito that breeds in most any water-filled container. It is an aggressive, day-biter that will feed on humans and a variety of available domestic and wild vertebrates. It is primarily active late afternoon through early evening although it has a secondary period of activity around dawn. It is responsible for most of the mosquito bites that occur in Kentucky city suburbs.

Estimated range of Aedes albopictus in the US (CDC 2016)

These maps represent the CDC's best estimate of the range of these two species in the US. They are not meant to represent the risk for spread of disease.

Zika activity book for kids (5/4)

Zika color page for kids (4/29)

CDC Protect your pregnancy poster (4/27)

CDC Mosquito bite protection for travelers poster (4/27)

Protect yourself, protect Kentucky flyer (4/27)

How many mosquito breeding sites around the house do you know? Check this list to see how you did.

One Health Awareness Mosquito poster is the result of a collaboration between our partners in the Department of Parks, the Department of Fish and Wildlife Resources, and the Department for Public Health.

Build your own Zika prevention kit   A list of items that will reduce your risk of getting Zika. This is particularly important for pregnant women.

Zika transmission and risks   This page describes the potential ways that zika might be spread from person to person.

Kentucky mosquitoes  This page provides brief profiles of common and important mosquitoes in Kentucky.


  This graphic is intended to help consumers easily identify the repellency time for mosquitos and ticks. Use of the graphic by manufacturers will be voluntary and available for qualifying companies. EPA will review products that apply to use the graphic to ensure that their scientific data meet current testing protocols and standard evaluation practices.

EPA repellent selection search tool You can specify the target (mosquitoes, ticks, etc.), protection time, active ingredient, or other product-specific information.


Fight mosquitoes with simple tips - a 30 second video from the Kentucky Department for Public Health

Fight mosquitoes with simple tips - a 30 second video in Spanish from the Kentucky Department for Public Health

Mosquito bite protection and repellents - From the Tennessee Department of Health

An animated fight the bite graphic - the suggestions for protecting yourself against West Nile virus are true for Zika, too.


Other sites and resources

OSHA FactSheet Interim Guidance for Protecting Workers from Occupational Exposure to Zika

Kentucky Health Alerts

Insect bites and stings - National Institutes of Health

Maintained by: Lee Townsend, Extension Entomologist



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