1.   Citronella, cedar and pennyroyal are the most common natural repellents and can be bought as sprays, oils or candles.

2.   Natural repellents other than cleaner socks?

3.   The discovery of natural repellents sets the stage for this development, but it may take decades more to flesh out.

4.   Unlike most natural insect repellents, Treo is registered with the Environmental Protection Agency, meaning that the manufacturer has supplied the government with required safety and efficacy data.

5.   Your choice of effective insect repellents boils down to those with DEET and those without, usually called natural repellents.