Acaricidal activities of Wikstroemia chamaedaphne extracts against Tetranychus urticae and Tetranychus cinnabarinus (Acari: Tetranychidae)
Various extracts of Wikstroemia chamaedaphne were evaluated their acaricidal activities against Tetranychus cinnabarinus (Boisduval) and Tetranychus urticae Koch (Acari: Tetranychidae) in laboratory. According to our study, the Wikstroemia chamaedaphne extracts had significant acaricidal activities against T. cinnabarinus and T. urticae. In this study, the mean LC50 value for T. cinnabarinus and T. urticae were 0.79 mg/mL for methanol extracts of W. chamaedaphne, which were liquid partitioned from the crude methanol extracts using the water bath immersion method. Conventional column chromatography was used to further purify active components from methanol partition extracts. The obtained 7th chromatographic fraction caused a mortality rate of 94.21 % for T. cinnabarinus, 91.52 % for T. urticae, and the 10th chromatographic fraction caused a mortality rate of 85.92 % for T. cinnabarinus, 88.21 % for T. urticae.
WANG You-Nian CHENG Jun SHI Guang-Lu BU Chun-Ya JIN Yong-Sheng REN Jian-Jun GUO Hui-li ZHAO Lei DU Juan LIU Yu-Bo ZHAO Li-Lin
Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture P.R.China Beijing University Key Laboratory of Urban Agriculture (North) of Ministry of Agriculture P.R.China Beijing University Department of Biotechnology Beijing University of Agriculture Beijing, China State Key Laboratory of Integrated Management of Pest Insects & Rodents Institute of Zoology, Chines
国际会议
成都
英文
1-5
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）