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Chinese Journal of Applied Ecology ›› 2003, Vol. ›› Issue (2): 249-252.

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Effect of plant alcohol extracts on vegetable aphids and their parasitoids

ZHOU Qiong1, LIANG Guangwen 2   

  1. 1. Xiangtan Normal University, Xiangtan 411201, China;
    2. Laboratory of Insect Ecology, South China Agricultural University, Guangzhou 510642, China
  • Received:2001-10-26 Revised:2002-04-03 Online:2003-02-15

Abstract: The repelling and controlling effect of alcohol extracts from 8 common plant species on3 major vegetable aphids (Myzus persicae,Aphis gossypii and Lipaphis erysimi) were studied in the laboratory, and the effect on their parasitoid was also studied. The results showed that the test 8 plant species had some effects on3 aphids. The plant alcohol extracts from Tephrosia vogelli and Cinnamomum camphora had the most effect. The deterrent rate on Myzus persicae, Aphis gossypii and Lipaphis erysimi was 0.414, 0.729, 0.547 and 0.549, 0.690, 0.729, respectively. These 2 plants had the most controlling effect on3 aphids, too. The alcohol extract of Cinnamomum camphora was safely for parasitoids (Aphidius gifuensis and Diaeretiella rapae).

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