title: Chemical Composition and Bioactivity of Essential Oil of Atalantia guillauminii against Three Species Stored Product Insects.
abstract: The toxic and repellent activities of the essential oil extracted from the leaves of Atalantia guillauminii Swingle were evaluated against three stored product insects, red flour beetles (Tribolium castaneum), cigarette beetles (Lasioderma serricorne) and booklice (Liposcelis bostrychophila). The essential oil obtained by hydrodistillation was investigated by GC-MS. The main constituents of the essential oil were β-thujene (27.18%), elemicin (15.03%), eudesma-3, 7(11)-diene (9.64%), followed by (-)-4-terpeniol (6.70%) and spathulenol (5.25%). The crude oil showed remarkable contact toxicity against T. castaneum, L. serricorne adults and L. bostrychophila with LD50 values of 17.11, 24.07 µg/adult and 55.83 µg/cm(2) respectively and it also displayed strong fumigant toxicity against T. castaneum, L. serricorne adults with LC50 values of 17.60 and 12.06 mg/L respectively, while weak fumigant toxicity against L. bostrychophila with a LC50 value of 16.75 mg/L. Moreover, the essential oil also exhibited the same level repellency against the three stored product insects, relative to the positive control, DEET. At the same concentrations, the essential oil was more repellent to T. castaneum than to L. serricorne. Thus, the essential oil of A. guillauminii may be potential to be developed as a new natural fumigant/repellent in the control of stored product insects.
authors.affiliation: Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University.
authors.forename: Kai
authors.initials: K
authors.lastname: Yang
authors.forename: Chun-Xue
authors.initials: CX
authors.lastname: You
authors.forename: Cheng-Fang
authors.initials: CF
authors.lastname: Wang
authors.forename: Ning
authors.initials: N
authors.lastname: Lei
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Guo
authors.forename: Zhu-Feng
authors.initials: ZF
authors.lastname: Geng
authors.forename: Shu-Shan
authors.initials: SS
authors.lastname: Du
authors.forename: Ping
authors.initials: P
authors.lastname: Ma
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Deng
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000187:drug effects*; D018556:Crops, Agricultural / Q000469:parasitology*; D004305:Dose-Response Relationship, Drug; D007302:Insect Repellents; D007928:Lethal Dose 50; D039821:Monoterpenes / Q000032:analysis; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity*; D018515:Plant Leaves / Q000737:chemistry; D011748:Pyrogallol / Q000031:analogs & derivatives / Q000032:analysis; D027821:Rutaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000032:analysis; D045787:Sesquiterpenes, Eudesmane / Q000032:analysis
chemical_list: D007302:Insect Repellents; D039821:Monoterpenes; D009822:Oils, Volatile; D012717:Sesquiterpenes; D045787:Sesquiterpenes, Eudesmane; D011748:Pyrogallol; C002135:elemicin; C013258:spathulenol