Homemade Insect Repellent
Mix citronella, lavender, pennyroyal, tea tree and jojoba oils and blend with almond oil before rubbing on your skin. For a spray, mix with rubbing alcohol or vodka. Be sure not to apply undiluted active ingredients to your skin! Do a spot test for irritation before applying.
To avoid making the repellent too concentrated, remember to add approximately 2 ounces of base for every 1/8 ounce of additional essential oil.
Source: Sound Consumer, June 2005