Producers Needed for Asian Longhorned Tick Study

Oklahoma State University researchers are launching a new study to examine the spread and impact of the invasive Asian longhorned tick on Oklahoma cattle herds. Led by Dr. Rosslyn Biggs in collaboration with OSU Extension and the College of Veterinary Medicine, the study seeks 20–30 ranchers with about 20 cattle each to participate. Researchers will test for two tick-borne diseases: anaplasmosis, a treatable bacterial infection, and Theileria orientalis genotype Ikeda, an untreatable pathogen that causes anemia and death.

While the Ikeda strain has not yet reached Oklahoma, it is present in neighboring states, prompting concern. Tick identification, blood testing, and shipping will be covered. Extension specialist Dr. Jonathan Cammack emphasized the risk of spreading Theileria through infected animals. The study aims to determine the tick’s prevalence and help guide a response to its potential spread. Sampling will continue through 2025, and producers in Oklahoma and nearby states are encouraged to participate.