Science, Space and Technology News 2023
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.
She found the first of these ticks in Ohio, on a stray dog in Gallia County in 2020, and another was collected from a cow in Jackson County in June 2021. And then a farmer from Monroe County called Ohio State later that summer to report three of his 18 cattle, heavily infested with ticks, had died. “There are no other ticks in North America that do that. So they can just march on, with exponential growth, without any limitation of having to find a mate,” Pesapane said. “Where the habitat is ideal, and anecdotally it seems that unmowed pastures are an ideal location, there’s little stopping them from generating these huge numbers.”
She and her colleagues are working as rapidly as they can at filling in knowledge gaps about these invaders and developing training materials and policy recommendations for affected industries. As one example, Pesapane said, tick inspections of livestock could provide a window for the application of an antiparasitic agent to eliminate the risk of transporting the exotic arachnids across multiple state lines.
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