NATURAL REPELLANTS ......... not chemical, would be essential oils mixed to make your own bug juice. Rose Geranium X radens, lemon grass, peppermint ....... these are the most common, often mixed together and cut with water. They do work in the way that ticks and skeeters don't like the stuff. It is all natural. It doesn't do a lick in the way of killing these critters remember. Most you'll expect is they wont want to be crawling or landing on ya. If you want them dead, nothing comes even close to the permethrin like in Sawyers, a kill on contact insecticide that supposedly is harmless once dried (treating clothes, boots gear, never on direct skin!)
I've tried the natural oil mix. It does work and many swear by it. The Rose Geranium works the best, is the general concensus ....... but it is also the most rugged smelling, nothing short of too much to deal with for me.......and bless her heart, you'll smell like Nana til you get yourself another hot shower with dead down wind, you can take that to the bank!!!!!