title: Antitermitic activity of leaf essential oils and components from Cinnamomum osmophleum.
abstract: The antitermitic activities of the essential oils from the leaves of two Cinnamomum osmophloeumclones (A and B) and their chemical ingredients against Coptotermes formosanus Shiraki were investigated according to direct contact application. Results from this experiment have demonstrated that the indigenous cinnamon B leaf essential oil has a more effective antitermitic activity than indigenous cinnamon A leaf essential oil. Furthermore, when cinnamaldehyde, eugenol, and alpha-terpineol are extracted from indigenous cinnamon leaf essential oil and used at the strength of 1 mg/g, their antitermitic effectiveness is much higher than that using indigenous cinnamon leaf essential oil. Among the congeners of cinnamaldehyde examined, cinnamaldehyde has exhibited the strongest termiticidal property.
authors.affiliation: Department of Forestry, National Taiwan University, Taipei 106, Taiwan.
authors.forename: Shang-Tzen
authors.initials: ST
authors.lastname: Chang
authors.forename: Sen-Sung
authors.initials: SS
authors.lastname: Cheng
mesh_terms: D000171:Acrolein / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D000818:Animals; D002849:Chromatography, Gas; D027424:Cinnamomum / Q000737:chemistry*; D007306:Insecticides / Q000737:chemistry / Q000302:isolation & purification; D020049:Isoptera; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D007306:Insecticides; D010938:Plant Oils; D000171:Acrolein; C012843:cinnamaldehyde