Haemaphysalis longicornis in the US: what you need to know

What CVB researchers are doing

Dr. Fonseca outlines the concerns for NJ residentsHaemaphysalis longicornis

Learn how to recognize a longhorned tick

Rutgers-led “Tick Blitz” finds exotic longhorned ticks and aggressive lone star ticks in new locations across New Jersey

Latest press releases from NJDA

Exotic Tick Species Found in Somerset County (September 7, 2018)

Exotic Tick Species Found in Monmouth County (August 21, 2018)

Exotic Tick Species Found in Bergen County (July 24, 2018)

Exotic Tick Species Found in Mercer County (June 5, 2018)

Exotic Tick Species Found in Middlesex County (May 16, 2018)

Exotic Tick Species Found in Union County (April 25, 2018)

Exotic Tick Species Confirmed to have Overwintered in New Jersey (April 20, 2018)

Exotic Tick Species Identified on Hunterdon County Farm (November 21, 2017)

Press releases from other states

Invasive tick detected in Tennessee (May 24, 2019)

Asian longhorned tick confirmed in Kentucky (May 7, 2019)

First Specimen of Exotic Tick in Connecticut (30 August 2018)

First Confirmed Longhorned Tick Found in Maryland (August 7, 2018)

Longhorned Tick Confirmed in Pennsylvania (July 31, 2018)

New Species of Tick Found in New York State (July 17, 2018)

First Detection of Longhorned Tick in North Carolina (July 11, 2018)

First Detection of Longhorned Tick in Arkansas (June 5, 2018)

First Detection of Longhorned Tick in West Virginia (May 23, 2018)

Exotic Tick Found on Cattle Farm in Virginia (May 16, 2018)

Information on this species

Most of what we know about this species is information gathered from other parts of this species’ range (such as South Korea and New Zealand.) Be aware that invasive species can act differently in new locations, so this information may not translate directly to what we should expect in NJ.

Review of ecology and biology of this species on Fonseca Lab blog

Publication on the discovery of H. longicornis in New Jersey co-authored by CVB researchers – click here for PDF

Profile of this species from New Zealand BioSecure Entomology Laboratory

Review article on the Biology, ecology and distribution of the tick, Haemaphysalis longicornis Neumann (Acari: Ixodidae) in New Zealand- click here for PDF

What if you find a suspect tick?

Visit NJDA- Division of Animal Health to find submission forms and drop-off locations or call 1-833-NEW-TICK


Center for Vector Biology