Jeffrey H. Ryan Hiker Author Photographer Speaker Podcaster Director

Permethrin Tick Repellent and Cats Don’t Mix

"cute cat" by Helgi Halldórsson/Freddi is licensed under CC BY-SA 2.0

In recent years, spraying clothing or gear with the insecticide Permethrin has become a popular way to help reduce the chance of getting Lyme disease. (Permethrin essentially prevents tick bites.) But if you own pets, beware. The concentration of permethrin used to prevent ticks on dogs (typically 45% or higher) can cause tremors, seizures and, […]