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Chinese Journal of Applied Ecology ›› 1993, Vol. 4 ›› Issue (2): 174-177.

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Studies on Tetranychus cinnabarinus-Solanum melongena interaction system Ⅰ. Relationship between population dynamics of red spider and tannic acid fluctuation in plant leaves

Wang Haibo, Wu Qianhong, Gao Wenda   

  1. Fudan University, Shanghai 200433
  • Received:1992-06-29 Revised:1992-10-05 Online:1993-04-25 Published:1993-04-25

Abstract: Under infestation of Tetranychus cinnabarinus, Solanum melongena can initially regulate its relative level of secondary metabolism, inducing the synthesis of anti-insect secondary metabolite-tannic acid to restrict the increase of red spider population. Meanwhile, a secondary metabolism with a semi-cycle of two to three weeks is found in normal plant. The cause of this cycle and its effect on pest population are analyzed and discussed.

Key words: Solanum melongena, Tetranychus cinnabarinus, Secondary metabolite, Tannic acid, Interspecific relationship