Neem is an evergreen tree native to the Indian sub-continent and is perhaps the most researched tree in the world for its pest control uses. BioSafe Systems has adapted these old time remedies into sustainable products like BioSafe Insect Control.
www.biosafesystems.com

A natural pest deterrent, Skeeter Screen oil is derived from geraniol and other natural essential oils. It is billed as an environmentally friendly, DEET-free way to help prevent biting insects from invading outdoor areas.
www.scentshop.com

Plantlife offers four products that they state are 100 percent natural, DEET-free, vegan pest repellents. The products are a soap and two oils for the body, and a candle for outdoor and indoor use.
www.plantlife.net