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以五味子的种子、果实和藤茎为试材,采用虫体浸渍法,研究了五味子不同部位萃取物对桃蚜(Myzus persicae Sulzer)和小菜蛾(Plutella xylostella Linnaeus)的毒杀活性和趋避效果。结果表明:五味子不同部位2g·L~(-1)提取物和萃取物对桃蚜均有杀虫活性和趋避效果,其中五味子油正丁醇萃取物(OB)、五味子果实正丁醇萃取物(FBU)、五味子果实水层萃取物(FW)、五味子藤茎乙酸乙酯部位萃取物(SET)、五味子藤茎正丁醇部位萃取物(SBU)杀虫活性达80.0%以上;趋避效果达80.0%以上的初提取物为五味子油正丁醇萃取物(OB)、五味子果实提取物(F)、五味子藤茎石油醚萃取物(SPE)、五味子藤茎乙酸乙酯部位萃取物(SET)和五味子藤茎水层萃取物(SW)。五味子不同部位2g·L~(-1)提取物和萃取物对小菜蛾的杀虫活性较差,只有五味子果实石油醚萃取物(SPE)杀虫效果达到60.0%以上。对小菜蛾均有驱避效果,达到60.0%以上的初提取物为五味子油乳化层(OL)、五味子果实水层萃取物(FW)和五味子藤茎正丁醇萃取物(SBU)。其余初提取物的杀虫效果和驱避效果较差。
Schisandra seeds, fruits and cane were used as test materials to study the toxicity and evasion effect of extracts from different parts of Schisandra chinensis on Myzus persicae Sulzer and Plutella xylostella Linnaeus by using the method of insect body immersion. The results showed that 2 g · L -1 extracts and extracts of different parts of Schisandra chinensis had insecticidal activity and evasion effect on Myzus persicae, among which, Butanol extract of Schisandra chinensis (OB), Butanol extract of Schisandra chinesis (FB), fructus schisandrae Fructus (FW), ethyl acetate extract of Schisandra sphenanthera (BS) and n-butanol extract (SBU) of Schisandra sphenanthera were more than 80.0% 80.0% of the initial extract were Schisandra oil n-butanol extract (OB), Schisandra fruit extract (F), Schisandra cane petroleum ether extract (SPE), Schisandra cortex Ethyl acetate extract (SET) And Schisandra cane aqueous extract (SW). The insecticidal activity of 2g · L -1 extracts and extracts from different parts of Schisandra chinensis on Plutella xylostella was poor, and only the petroleum ether extract of Schisandra chinensis fruit (SP) insecticidal effect reached 60.0%. For P. xylostella, repellent effect was achieved. The primary extracts above 60.0% were Olive Oil Emulsion (OL), Fructus Schisandrae Fructus (FW) and Schisandra cinerea Butyl Alcohol Extract (SBU). The rest of the early extract insecticidal effect and repellent effect is poor.