Many Wisconsinites are headed outdoors to enjoy the beautiful fall weather, either hiking, hunting, or apple and pumpkin picking. But while the peak of tick season has passed, ticks are still active.
Marshfield Clinic Research Institute’s Tick Inventory via Citizen Science (TICS) has identified more than 5,400 ticks sent by Wisconsin residents this year. TICS researchers are still asking you to contribute any ticks you may find.
“In 2024, the first year of the TICS study, we saw a surge of tick submissions in October,” said Alexandra Linz, Marshfield Clinic Research Institute associate research scientist. “These were often deer ticks, which are the ones that primarily carry disease in Wisconsin.”
Of the ticks collected, about 3,500 or more than 65% are the American dog (wood) tick and the majority of the remainder are the deer (blacklegged) tick. Much of that difference is likely due to the larger wood ticks being easier to spot than the smaller deer ticks.
“The deer tick’s small size and greater likelihood of carrying illnesses like Lyme disease is what makes it critical to perform tick checks after spending time in wooded or brushy areas,” Linz said. “Just because the weather is cooler, doesn’t mean that ticks aren’t active.”
The influx of ticks discovered during the first two years of the study – nearly 12,000 ticks submitted – allowed the research team to detect much rarer species in Wisconsin, including 21 lone star ticks. The lone star tick causes Alpha-gal Syndrome, also known as the meat allergy, and it’s a species of concern that is being found more often in the Midwest.
Hunters can help, request a kit
If you’re out hunting, you can check your kills for ticks and contribute those as well. You’ll likely spot ticks near the eyes or ears, and it’s best to check as soon as possible as the ticks will start detaching as the body cools.
Boxes of kits are also available at Rib Mountain State Park, the George Mead Wildlife Area Education Center, Castlerock Veterinary in Marshfield, and many Marshfield Clinic locations.
For more information, or to request a pre-paid collection kit be sent to you, contact tics@marshfieldclinic.org or 1-715-389-7796 (extension 16462). Parks and nature centers interested in having kits available for their visitors also are encouraged to contact Marshfield Clinic Research Institute.
Once the tick, dead or alive, has been placed in the collection kit, just drop it in the mail to submit. Any tick found on people or pets is appreciated. Each kit will come with a unique identification number that people can use to look up, via an online dashboard, the species of ticks they submitted.
TICS will continue collecting ticks until winter ends tick activity for the year.
