![]() Still, managing them is not easy because of how numerous they are and how easily they can come back."Īsian longhorned ticks originate from East Asia and were first detected in the United States in New Jersey in 2017. "The good news about the ticks, though, is that most tick control agents that we currently have seem to kill them. There is no getting rid of them," said Risa Pesapane, senior author of the paper and an assistant professor of veterinary preventive medicine at Ohio State. "They are going to spread to pretty much every part of Ohio and they are going to be a long-term management problem. Researchers say the tiny brown ticks-the size of a sesame seed in some life stages and pea-sized when engorged-are persistent, however: Surveillance showed they returned the following summer to the farm despite the application of pesticides in 2021. Elsewhere this tick carries another pathogen, Theileria orientalis, that affects cattle, and cases of bovine theileriosis have been reported in Ohio. Just a handful of the hundred ticks from the farm screened for infectious agents tested positive for pathogens, including one, Anaplasma phagocytophilium, that can cause disease in animals and humans. They tend to favor large livestock and wildlife, such as cattle and deer. So far, these ticks are not deemed to be a threat to human health. The scientists from The Ohio State University have reported in the Journal of Medical Entomology on the state's first known established population of Asian longhorned ticks, and are now conducting research focused on monitoring and managing these pests.
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