"EPA. 1994. (Environmental Protection Agency.) Inert ingredients in Pesticide Products; list of minimal risk inerts. Federal Register, Weds., Sep 28, 1994, Vol. 59, No. 187: 49400-49401. �Inert ingredients include acetic acid, beeswax, cinnamon, cloves, food, hydrogenated vegetable oil, linseed oil, mineral oil, olive oil, parafin wax, safflower oil, wintergreen oil, vanillin, xanthan gum, and many others, are of minimal risk� (and are also exempt from FIFRA, see EPA 1996)."
"EPA. 1996. (Environmental Protection Agency.) Exemption of certain pesticide substances from Federal Insecticide, Fungicide, and Rodenticide Act Requirements. Federal Register, Weds., Mar. 6, 1996, Vol. 61, No. 45: 8876-8879. �Cinnamon oil, citronella oil, lemongrass oil, mint and mint oil [eg., Patchouli oil], peppermint oil, and many others, are exempt from FIFRA.�"