Rose geranium oil is really good for keeping ticks off. Recipe 1 tablespoon Vodka or Witch Hazel 40 drops Rose Geranium Essential Oil. ⅓ cup distilled water (78.8627455ml) 28.4 ml/oz I put it in a little spray bottle and spray my boots and outer garments with it daily on my way out. or; smaller version 1/2 tbsp vodka or witch hazel 20 drops rose geranium essential oil 1/6 cup distilled water (39.4313728ml) 28.4 ml/oz