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    Laboratory and Field Studies of C8910, a Fatty-Acid–Based Insect/Arthropod Repellent and Biopesticide

    Published: 26 September 2014

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    C8910 is a mixture of octanoic, nonanoic, and decanoic acids that exist naturally on the skin surface of humans. These fatty acids are regulated as GRAS (generally recognized as safe) by the U.S. Food and Drug Administration (FDA) and are environmentally benign. C8910 has recently been approved by the U.S. Environmental Protection Agency (EPA) for use as a fly repellent on livestock, and C8910 is being marketed as an insect repellent for use on animals and humans in South Africa. Livestock is the leading cash crop of all U.S. farm production, with cattle/calves being the leading cash commodity. U.S. field studies have shown that C8910 provided effective (90 % control) of horn flies on cattle (1000–1500 flies/head on controls) by the use of a topical dust treatment (dust bag self-applicators) comparable to pyrethroids and organophosphorus-type pesticides. By employing a number of laboratory and field test methods, C8910 has been shown to have both repellent and insecticidal effects against mosquitoes and a number of other insects or arthropods (ticks), a combination of effects not shared by the insect repellent N,N-diethyl-m-toluamide (DEET) or the insecticide permethrin.


    repellent, biopesticide, fatty acid, laboratory and field tests

    Author Information:

    Reifenrath, William G.
    Stratacor, Inc., Richmond, CA

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP157920130166