Officials Concerned Rare Tick Now Established Near Bucks Co.

A rare and exotic East Asian tick that was found on a farm near Bucks County last fall has survived the winter, and authorities are concerned it has become established in the area.

The East Asian tick, also known as the longhorned tick or bush tick, was located in Hunterdon County, N.J. in November. Until that time, this type of tick was not known to exist in the United States.

How it got here remains a mystery, state officials say.

The tick is dark-brown and grows to the size of a pea when fully engorged, according to the New Jersey Department of Agriculture. This species can carry several bacterial and viral diseases, and has been associated with spotted fever rickettsioses, authorities said.

The NJ Department of Agriculture says it's working with federal officials to eliminate the tick and contain its spread to the surrounding areas.

"State and USDA employees will be working with the public to determine if the tick has spread to new areas and to educate the public about protecting livestock and pets from this pest," the NJ Department of Agriculture said in a statement.

Like deer ticks, the nymphs of the Longhorned tick are very small (resembling tiny spiders) and can easily go unnoticed on animals and people. This tick is known to infest deer and a wide range of other hosts. Therefore, it has the potential to infect multiple North American wildlife species, the NJ Department of Agriculture said.

This type of tick is a "serious" pest to livestock (particularly in New Zealand), as well as wildlife, pets and humans, authorities say.

"Farmers should monitor their livestock for the presence of this tick and decreased growth rates or signs of anemia in the animals. With respect to livestock, the tick is known to transmit a disease called Theileriosis to cattle, which results in severe anemia and possibly death," the Department of Agriculture said in November when the tick was first found.

Pennsylvania residents who believe they see this type of rare tick can email a picture of it to Badbug@pa.gov.

Image NJ Dept of Agriculture