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Scientia Silvae Sinicae ›› 2007, Vol. 43 ›› Issue (08): 65-70.doi: 10.11707/j.1001-7488.20070811

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Acarocidal Actions of Wikstroemiae chamedaphne against Tetranychus viennensis

Cao Hui1,2,Wang Younian1,Zhang Tieqiang1,Zhao Lilin3,Liu Suqi2,Shi Guanglu1   

  1. 1.Key Laboratory of New Technology of Agricultural Application of Beijing Beijing 102206;2.College of Agriculture,Shanxi Agricultural University Taigu 030801;3.State Key Laboratory of Integrated Management of Insects and Rodents Institute of Zoology,Chinese Academy of Sciences Beijing 100080
  • Received:2005-11-09 Revised:1900-01-01 Online:2007-08-25 Published:2007-08-25

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Abstract:

Wikstroemiae chamedaphne has good acarocidal activity against Tetranychus viennensis,a serious pest of many crops including apple trees in China.Its active constitutes,WCME-7 and WCME-11,were separated and purified by column chromatograghy.The symptomal observiation showed that they had many actions,such as stomach poison,controlling development,controlling reproducing and so on.They maybe affect not only the nerve transmition but also digest,growing system.In contrast,WCME-11 showed more strong symptom phenomenon with more all-directions function method,knocked down more quickly.From 12 h,the mites began to enter death period on large.Function mechanism of WCME-11 was studied in the experiment.The results indicate that the WCME-11 could cause the fast reaction of the enzymes inside the mites.Before 8 h, the enzymes were changed.WCME-11 could cause mite to counteract poison by GSTS and CarE,Ca2+-ATP enzyme and AchE have been restrained strongly.

Key words: Wikstroemiae chamedaphne, Tetranychus viennensis, function mechanism