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Chinese Journal of Applied Ecology ›› 2005, Vol. 16 ›› Issue (2): 313-316.

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Suppressive effects of non-preferable plant alcohol extracts on diamondback moth Plutella xylostella population

XIAN Jidong, LIANG Guangwen, SHEN Shuping, PANG Xiongfei   

  1. Key Laboratory of Insect Ecology and Toxicology of Chinese Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China
  • Received:2004-01-04 Revised:2004-04-19 Online:2005-02-15 Published:2005-02-15

Abstract: In this paper,a life table and an interference index of population control (IIPC) were used to evaluate the effects of spraying the alcohol extracts of non-preferable plants on the dynamics of diamondback moth Plutella xylostella) population.The results showed that the alcohol extracts of Eupatorium odoratum,Lantana camara and Wedelia chinensis were available to protect kidney bean from Plutella xylostella infestation.Their IIPC were 0.110,0.136 and 0.165,and the efficacies of controlling P.xylostella were 89.0%,86.4% and 83.5%,respectively,compared with control.

Key words: Plutella xylostella, Secondary plant substance, Life table, Interference index of population control

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