“…Phytochemical studies carried out on Achillea essential oils have identified sesquiterpene lactones, flavonoids, alkaloids, lignans, triterpenes alkamides and polyacetylenes [3,4]. Achillea essential oils and sesquiterpene lactones have been studied by a number of investigators, but never evaluated for their potential as agrochemicals [3,4,8,10,11]. Terpenoids (1,8-cineole, camphor, bomeol, pinenes, artemisia ketone, santolina alcohol, farnesane, caryophyllene and its oxides, -bisabolol and oxides, cubebene, germacrenes, eudesmol, farnesene, -gurjunene, -muurolene and chamazulene) are the principle components of Achillea essential oils [3,4].…”