Damminix 27203 Tick Tube, 24-Pack Permethrin, a synthetic pyrethroid is based on a natural compound extracted from chrysanthemum Tick tubes deliver tick-controlling permethrin You can place biodegradable damminix tick tubes around your property in the spring and fall Mice collect the permethrin treated material to line their nests, the deer ticks on the mice die One box of 24 covers 1/2 acre of land