Ohio's Battle with Asian Longhorned Ticks and Theileria - What to Watch in 2024

By Andi Anderson

As Ohio grapples with the increasing threat of ticks and tick-borne diseases, it's crucial for livestock producers to stay informed about emerging risks and take proactive measures to protect their animals. Here's what to watch for in 2024:

Asian Longhorned Ticks (ALHT) Presence: As of the end of 2023, ALHT has been positively identified in 11 counties across Ohio. These ticks have demonstrated the ability to transmit diseases to cattle and can cause mortality through high numbers of ticks feeding on animals. The spread of ALHT is expected to continue, as they feed on various wildlife species and can move across different areas. Producers should remain vigilant and stay updated on the latest developments regarding ALHT in Ohio.

Theileria in Cattle: Theileria, specifically Theileria orientalis IKEDA, has been detected in cattle in eight Ohio counties. Symptoms of Theileria infection include increased heart and respiratory rates, anemia, jaundice, and increased mortality. Currently, there is no approved treatment for Theileria in the US, making prevention and early detection crucial for livestock health.

Scouting for ALHT: While ticks can be encountered year-round in Ohio, ALHT tends to prefer warmer and more humid conditions. However, detections of ALHT have occurred as early as April, highlighting the unpredictable nature of tick activity in Ohio. Producers should start scouting for ticks early in the season and remain vigilant throughout the year, especially during periods of warmer weather.

Resources for Livestock Producers: Livestock producers can access valuable information and resources on tick-borne diseases and livestock health through the BITE SITE website. Collaborations between Ohio State University's College of Food, Agricultural, and Environmental Sciences, College of Veterinary Medicine, and Knowledge Exchange data hosting group have led to the creation of this site, which will be regularly updated with the latest research and data to help producers keep their animals and families safe from ticks and tick-borne diseases.

Staying informed and proactive is key to managing the risks posed by ticks and tick-borne diseases in Ohio. By remaining vigilant, utilizing available resources, and working closely with veterinarians, livestock producers can help safeguard the health and well-being of their animals.

Photo Credit: gettyimages-erikkarits