By Blake Jackson
The New York State Department of Agriculture and Markets and Cornell Integrated Pest Management have issued a warning to livestock producers about the growing threat of the Asian longhorned tick. This invasive pest has spread steadily since it was first found in the United States in 2017 and is now a concern in the Hudson Valley region.
State Agriculture Commissioner Richard A. Ball said, “Asian longhorned tick is increasingly becoming a concern for our livestock producers, particularly in the Hudson Valley area, where our partners at Cornell IPM have seen a significant uptick in activity. The good news here is that by being vigilant and taking proactive measures, our producers can keep their animals healthy and safe. I urge all of our cattle, sheep and goat producers to take a look at the ways they can reduce the threat of the longhorned tick and follow their veterinarian’s guidance.”
Cornell IPM Associate Director Ken Wise also highlighted ongoing monitoring efforts. He said, “We are actively and vigilantly monitoring the spread of the Asian longhorned tick across New York State to better understand its distribution, habitat selection and potential impacts on livestock and animal health. Through ongoing surveillance efforts, we are tracking population levels and providing science-based management recommendations when tick populations reach levels that may pose a risk to animal health and productivity.”
The Asian longhorned tick is dangerous because it can grow in large numbers on animals, causing serious blood loss. This may lead to weakness, low production, and even death. It also spreads theileriosis, a disease that affects cattle by reducing milk production and causing fever, weight loss, and severe illness.
Officials advise livestock producers to take preventive steps. These include checking animals regularly, testing new animals before adding them to herds, and maintaining clean pastures. Mowing grass, removing bushes, and managing high-traffic areas can help reduce tick presence. Direct treatment of animals with approved products is also effective.
The tick has now spread further in New York, with cases found as far north as Columbia County in 2026. Since these ticks are very small, early detection is difficult, making regular monitoring essential.
For more details and helpful resources on the Asian longhorned tick, visit Cornell IPM’s website:
https://cals.cornell.edu/integrated-pest-management/outreach-education/whats-bugging-you/asian-longhorned-tick
For information on products suitable for use on livestock, refer to: https://cornell.app.box.com/v/tick-mgnt-products-livestock
Photo Credit: new-jersey-department-of-agriculture
Categories: New York, General, Livestock