We examined the behavior of Formosan subterranean termitestoward one of the components of vetiver grass oil, the roots of which manufacture insect repellents. We found nootkatone, a sesquiterpene ketone, isolated from vetiver oil is a strong repellent and toxicant to Formosan subterranean termites. The lowest effective concentration tested was 10 mg/ g substrate. This is the first report of nootkatone being a repellent to insects.
Nootkatone is a repellent for Formosan subterranean termite (Coptotermes formosanus) / B., Zhu; G., Henderson; F., Chen; Maistrello, Lara; R. A., Laine. - In: JOURNAL OF CHEMICAL ECOLOGY. - ISSN 0098-0331. - STAMPA. - 27 (3):(2001), pp. 523-531. [10.1023/A:1010301308649]