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.

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.

Deer tick numbers are going down as we move into Fall.  We picked up 1 nymph and 14 larvae over 1000 meters (our standard measure for comparisons) during the 2nd week of September in Cross Plains Wisconsin.  So, nymphs are still out there and looking for hosts but are relatively uncommon now.  We expect to see adult deer ticks beginning to increase in mid October.  So stay alert!


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.