Tiny Invasive Tick that Spreads Disease Found in Michigan for First Time
- The Michigan Department of Agriculture announced the first identification of the invasive Asian longhorned tick in the state, discovered during routine surveillance at a park located in Berrien County on June 11, 2025.
- This event follows the tick’s initial discovery in New Jersey in 2017 and its spread across 21 eastern U.S. states, raising concerns about its expanding range and disease potential.
- Calvin University research students have studied the tick’s ecology in West Michigan since 2020, cooperating with state agencies to identify its distribution and risks to livestock.
- State Veterinarian Nora Wineland emphasized that identifying this tick species in Michigan will lead to expanded efforts to inform farmers, pet owners, and veterinary experts about how to protect animal and public health.
- The discovery highlights the need for ongoing surveillance because the tick can reproduce asexually, cause massive infestations, and transmit multiple diseases harmful to animals and humans.
11 Articles
11 Articles
Invasive tick species found in Berrien County
GRAND RAPIDS, Mich. (WOOD) — The first Asian longhorned ticks in the state have been found in Berrien County. Calvin University researchers found the two ticks during routine surveillance at Grand Mere State Park, according to the Michigan Department of Agriculture and Rural Development. "Calvin research students have been studying the ecology and distribution of ticks in West Michigan since 2020," said William Miller, assistant professor of bio…
Deadly tick spreading across U.S.
The National Veterinary Services Laboratory identified a dangerous tick species in northeast Oklahoma in early June called Asian Longhorned Tick. The same species also was identified for the first time in St. Louis County, Missouri, in late February. The tick…


KSCS issues PSA regarding Tick-Borne Disease
Kahnawà:ke Shakotiia’takéhnhas Community Services (KSCS) is urging residents to take precautions during outdoor activities in the coming weeks, as tick populations continue to spread across southern Quebec.
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