Date: Thu, 2 Apr 2020 11:43:22 -0400
From: Elliot Cramer
Subject: How Permethrin Can Help Protect You From Ticks (another try)
The best thing to keep ticks from biting you is permethrin. As an insecticide, permethrin will actually kill ticks, not just keep them away, and it’s different from DEET in that you put it on your clothes rather than spraying it on your skin. If you need to get serious about tick protection this summer, we’ve done the research on where to find permethrin, how to use it, and what safety concerns may arise.
https://thewirecutter.com/blog/permethrin-protect-from-ticks/
Though the CDC recommends DEET as an effective tick repellent, Mather and our other six experts prefer permethrin (the same chemical used in delousing shampoos like Nix), which acts as a “tick-killing agent,” according to Dr. Rick Ostfeld, a disease ecologist at the Cary Institute.
https://nymag.com/strategist/article/effective-tick-repellents.html
It is used for dogs (but not cats) in products such as Freedom 45 Spot On Flea/Tick Control for Dog – Dog.com in 45% concentration but is also found in bulk form at farm stores in 38% concentration
https://www.dog.com/item/freedom-45-spot-on-flea-tick-control-for-dog/P00766/
Permethrin General Fact Sheet – NPIC – Oregon State University
http://npic.orst.edu/factsheets/PermGen.html