- For your family, create an eco-friendly flea and tick repellent by combining a few drops of pennyroyal, lemon and palmarosa essential oil with a spray bottle full of water. You can spray the mixture on clothing and bare skin to repel the insects. Lemon oil will make your skin more sensitive to the sun, so take care to avoid spending time in direct sunlight.
- For your dog, make an herbal flea- and tick-repellent collar by placing a few drops of lemon and pennyroyal oil on a fabric collar. Cats can be made ill by citrus oils, so use only pennyroyal and palmarosa oils for their collars. Refresh the collar with new oil every week or so to keep it potent.
- Pennyroyal plants can induce miscarriages in humans and animals, so do not use pennyroyal oil around any member of your household who is pregnant. When spraying down clothing, concentrate the application on the openings of pants and sleeves, where ticks and fleas most often gain access.
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