Composition and Antifungal Activity of the Oil of Artemisia nilagirica (Clarke) Pamp

Abstract The essential oil of the leaves of Artemisia nilagirica from South India was investigated by GC and GC/MS, which lead to the identification of 59 compounds including α-thujone (41.9%), borneol (10.8%), and β-thujone (9.1%). The leaf oil inhibited the growth of the plant pathogen Phytophthora capsici. This property has been attributed to the presence of thujones in the oil.