title: Insecticidal Constituents from Buddlej aalbiflora Hemsl.
abstract: Eleven known compounds, deoxymikanolide (1), 1,3-dihydroxyxanthone (2), kumatakenin (3), apigenin (4), chrysin (5), kaempferol (6), Iso-kaempferol (7), luteolin (8), luteolin-3',4'-dimethylether-7-O-β-glucoside (9), luteolin-7-O-β-glucoside (10) and quercetin (11) were identified in MeOH extract of Buddleja albiflora Hemsl (Oleaceae). These compounds (each, 1, 0.5 and 0.25 mg mL-1) were tested for insecticidal activity against 3rd and 4th-instar larvae of Plutella xylostella, 3rd-instar larvae of Mythimna separata and 3rd-instar larvae of Macrosiphoniella sanborni. The lowest 50% anti-feedant concentration (AFC50) against P. xylostella and 50% lethal concentration (LC50) against P. xylostella and M. sanborni were observed as 0.0058, 0.0046 and 3.4048 mg L-1, respectively.
authors.affiliation: a Research and Development Center of Biorational Pesticide , College of Plant Protection , Yangling , P.R. China.|b Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science , Northwest A&F University , Yangling , P.R. China.
authors.forename: Xiu-Yun
authors.initials: XY
authors.lastname: Zhang
authors.affiliation: a Research and Development Center of Biorational Pesticide , College of Plant Protection , Yangling , P.R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Shen
authors.affiliation: a Research and Development Center of Biorational Pesticide , College of Plant Protection , Yangling , P.R. China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: a Research and Development Center of Biorational Pesticide , College of Plant Protection , Yangling , P.R. China.
authors.forename: Zhi-Ping
authors.initials: ZP
authors.lastname: Wei
authors.affiliation: b Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science , Northwest A&F University , Yangling , P.R. China.
authors.forename: Jin-Ming
authors.initials: JM
authors.lastname: Gao
mesh_terms: D000818:Animals; D032861:Buddleja / Q000737:chemistry*; D007306:Insecticides / Q000302:isolation & purification* / Q000494:pharmacology; D035261:Plant Components, Aerial / Q000737:chemistry; D010936:Plant Extracts / Q000032:analysis
chemical_list: D007306:Insecticides; D010936:Plant Extracts
keywords: Buddleja albiflora; Macrosiphoniella sanborni; Mythimna separata; Plutella xylostella; insecticidal activity; quercetin