Acaricidal activity of Aloe vera L. leaf extracts against Tetranychus cinnabarinus (Boisduval) (Acarina: Tetranychidae)

作者：Wei, Jie; Ding, Wei^*; Zhao, Yan-Guo; Vanichpakorn, Patchara****

来源：Journal of Asia-Pacific Entomology, 2011, 14(3): 353-356.

DOI：10.1016/j.aspen.2011.04.006

• Aloe vera
• Tetranychus cinnabarinus
• Acaricidal activity
• Plant extract

Four different extracts of Aloe vera L leaves were evaluated for acaricidal activity against female adults of carmine spider mite, Tetranychus cinnabarinus (Boisduval), by slide-dip bioassay. At 72 h after treatment, the acetone extract showed the strongest acaricidal activity with LC50 value of 90 ppm. The LC50 values for ethyl acetate, water, and ethanol extracts were 113, 340, and 391 ppm, respectively. The acetone extract was fractionated using a silica gel column. Among the twenty-two fractions obtained the fifth, tenth, eleventh, twelfth, fifteenth, and seventeenth fractions showed strong acaricidal activity, causing 80.39 to 92.16% mortality at 72 h after treatment. The tenth and eleventh fractions had the strong activity, with LC50 values of 44 ppm and 33 ppm, respectively. The results suggested that A. vera has a great potential for development as a botanical acaricide for T. cinnabarinus control.

• 出版日期2011-9
• 单位西南大学