Improved living standards have resulted in the public demanding greater food safety. In the process of searching for plant protection agents with reduced risks to food safety, there has been an increasing attention on secondary metabolites of plants. E. adenophorum has been used by the Tamang tribes as an herbal medicine for treating fever and insomnia . Previous studies showed that E. adenophorum essential oil is rich in terpenes . This class of compounds defends many species of plants, animals and microorganisms against predators, pathogens and competitors . Terpenes in E. adenophorum therefore show great promise as plant protection agents.