I had a bad experience with ticks this summer. A trail I was walking on became overgrown (grass in center), and I had to stop every minute to flick off half a dozen ticks racing up my pants leg. My only defense was DEET which did not seem to be working. Eventually I turned back.

A coworker recommended permethrin. A quick glance on the internet shows it to be effective against ticks.

I was wondering, for those of you who have used the product, do you find it is 100% effective, or will I still have to deal with ticks in June?

Do you spray everything (outer clothing, backpack, and hat) or just your pants?