Because I still have young children at home and suffered so terribly from Lyme disease, I took the time a few years ago to find a "green"tick repellent that had none of the side effects associated with DEET. I ended up with a lemon eucalyptus formulation that had been tested and found to be highly effective in a study from Sweden.The 'recipe' is pretty easy-the hardest thing is finding the lemon eucalyptus oil. It is available online and sometimes in natural food stores. You also need a clean spray-top bottle.
HERBAL TICK REPELLENT
8 oz. boiled and then cooled water
20 drops Lemon Eucalyptus Oil
Spritz on before every hike!
Avoid eyes because it stings like all get up and go.