A new species of tick has found its way to North Carolina.
Recent tick surveys sent to the U.S. Department of Agriculture found the Longhorned tick (Haemaphysalis longicornis) on an opossum in Polk County. The tick has been previously identified in Arkansas, New Jersey, Virginia and West Virginia.
“We are working with the USDA, N.C. Department of Health and Human Services, N.C.
Wildlife Resources Commission, our field staff and veterinarians to help raise awareness of ticks
and tick prevention,” said Agriculture Commissioner Steve Troxler. “The good news is that the
Longhorned ticks respond to insecticides used to control other common species of ticks on pets
The Longhorned tick is an exotic, East Asian tick. Prior to its identification last fall in
New Jersey, the Longhorned tick was not typically found in the United States. It is a serious pest
of livestock in its native regions and the means of introduction into the U.S. is unknown. Its
presence in N.C. signals the need among livestock producers and residents for greater awareness, surveillance, and tick control management. It is an aggressive biter and frequently builds intense infestations on animals causing great stress, reduced growth and production, and blood loss.
The tick can reproduce parthenogenetically (without a male) and a single fed female tick can create a localized population. It is a known/suspected carrier of several viral, bacterial and protozoan agents of livestock and human diseases. Known as a three-host tick, this tick can spread pathogens among a diverse host range on which it feeds.
While the Longhorned tick has not been linked to any human infection in the US, the N.C.
Division of Public Health is working with NCDA&CS to understand its distribution and monitor
for diseases it may carry. The finding of this tick in the state corresponds with an effort by the
N.C. Department of Public Health to identify ticks in all 100 counties of the state. Veterinarians
are asked to submit ticks they find on clinical patients to help track and identify tick populations
in North Carolina.
If you are a veterinarian practicing in North Carolina and are interested in
participating in this study, email Dr. Alexis M. Barbarin at NCTickID@dhhs.nc.gov.
Ticks attack all domestic animals, wildlife and people. The best way to control diseases
spread by ticks is early removal. Prevention remains the best method to deter tick-borne
illnesses. Showering immediately once you return home and checking for ticks can help to deter
tick attachment. Protect yourself while outdoors by wearing long clothing, wearing permethrintreated clothing, and using DEET, picaridin, and other EPA approved repellants.
Finally, talk to your veterinarian about options to treat your pets and livestock for ticks.