This site will provide information on ticks and tick-borne disease in Wisconsin.  Please use the drop-down menus above to find the information most relevant to you.

We’ve added maps from the Surveillance of Wisconsin Animals for Ticks (SWAT) program under the Wisconsin ticks tab.  The maps show the distribution of major tick species based on this type of surveillance as well as data on infection rates in adult ticks with important pathogens.

Tick testing:  We frequently receive requests for tick testing.  While we don’t perform this service, you can find commercial operations that will do this for a fee at the Tick Encounter Resource http://www.tickencounter.org/tick_testing.

Larval, nymphal and adult ticks are active now (June 2015)!  Both deer and wood ticks are actively looking for hosts.  Remember to do careful tick checks if you’ve been in tick habitat.  And watch out for the tiny nymphal deer ticks, which are likely responsible for much of the disease transmission.  Numbers of nymphs are usually highest in June.


Figure 1.  Adult deer ticks (top row) and wood ticks (bottom row).  Females are on the left and males on the right.

AMB AME MALE & FEMALEThese are male and female lone star ticks (Amblyomma americanum).  We are interested in receiving specimens that were picked up in Wisconsin, especially if the approximate location can be identified.  Please contact smpaskew@wisc.edu if you find one.  See the page on Amblyomma under Wisconsin ticks  for more information.