Put the clothes in the dryer on high heat for six minutes to kill ticks on clothing, then wash if the clothes are dirty. Why? Ticks love water. In a recent study, 94 percent of ticks survived cold-water washes and 50 percent survived hot-water washes. Once the clothes were wet, it took 70 minutes to kill the tick in the dryers on low heat and 50 minutes in dryers on high heat.
Source: Ticks and Tick-Born Diseases, July 2016. (abstract only).