Thermacell Control Tubes Insect Repellent Device For Ticks 12 pkThermacell Tick Control Tubes are the no spray, easy way to kill deer ticks and prevent them from spreading Lyme disease and Powassan virus to your pets and family members. Yard set up takes only a few minutes twice a year. Kills backyard ticks with lyme disease Doesn't harm kids, pets or environment Apply in minutes, only two times per year Works with nature to reduce the tick population No spray; environmentally friendly The best time to apply is in