Longhorned Ticks Established in Ohio

Cow in pastureJournal of Medical Entomology (Eleftheriou, A., et al.) 08.2023, published “An established population of Asian longhorned ticks (Acari: Ixodidae) in Ohio, USA.” The Asian longhorned tick, Haemaphysalis longicornis Neumann, continues to expand in range in the US. Researchers have for the first time identified an established population of longhorned ticks in Ohio.

In 2021, after investigating an infestation of ticks on cattle that resulted in 3 cattle deaths, nearly 10,000 longhorned ticks were collected and identified in all 3 life stages from an Ohio pasture. The ticks returned to the pasture in spring 2022 despite successful pesticide treatment in fall of 2021. Ticks were tested for multiple infectious agents and 8 of 100 field-collected female ticks tested positive for Anaplasma phagocytophilum. Continued surveillance studies are important to evaluate the role of longhorned ticks in human and animal health as expansion of range and distribution continues.

For More Information:

Access to the Journal of Medical Entomology Article

Read more LDA articles on Asian longhorned tick