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林产化学与工业 ›› 2003, Vol. 23 ›› Issue (04): 51-53.

• 研究报告 • 上一篇    下一篇

银杏外种皮乙醇提取液对蔬菜害虫的毒力研究

赵肃清1, 蔡燕飞1,2, 张厚瑞1, 李典鹏1, 蔡爱华1, 文永新1   

  1. 1. 中国科学院 广西植物研究所, 广西 桂林 541006;2. 华南农业大学 资源环境学院, 广东 广州 510642
  • 收稿日期:2002-12-19 修回日期:1900-01-01 出版日期:2003-12-30 发布日期:2003-12-30

TOXICITIES OF EXTRACT FROM EXOTESTA OF GINKGO BILOBA L.AGAINST INSECTS OF VEGETABLE

ZHAO Su-qing1, CAI Yan-fei1,2, ZHANG Hou-rui1, LI Dian-peng1, CAI Ai-hua1, WEN Yong-xin1   

  1. 1. Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China;2. College of Resource and Environment, South China Agriculture University, Guangzhou 510642, China
  • Received:2002-12-19 Revised:1900-01-01 Online:2003-12-30 Published:2003-12-30

摘要: 为了探讨银杏外种皮对蔬菜害虫的室内毒力效果,采用非选择性拒食和毒杀作用方法研究银杏外种皮乙醇提取液室内对蔬菜害虫的毒力。结果表明:银杏外种皮乙醇提取液的稀释倍数与菜粉蝶5龄幼虫的拒食率呈现较好的负相关性,菜粉蝶5龄幼虫50%拒食率所需的银杏外种皮乙醇提取液的质量浓度为0.63mg/mL。100倍稀释的银杏外种皮乙醇提取液对蔬菜菜粉蝶3龄幼虫、黄曲条跳甲成虫和美洲斑潜蝇幼虫毒杀作用的死亡率分别为25.00%、32.50%和36.67%。说明银杏外种皮乙醇提取液对菜粉蝶5龄幼虫有很好的拒食作用,而对蔬菜害虫的毒杀作用效果不明显。

关键词: 银杏, 外种皮, 乙醇提取液, 害虫, 毒力

Abstract: No-choice antifeeding and contact toxic tests were carried out to investigate toxic effects of extract from (exotesta) of Ginkgo biloba L.to insects of vegetables.Results showed: multiple of dilution of extract from exotesta of G.biloba L.is in negtave relativity with no-choice antifeeding tests against five-year instar larvae of Pieris rapae L.The concentration of extract from exotesta of G.biloba L.of 50% inhibitory ratio of no-choice antifeeding tests against five-year instar larvae of P.rapae L.is 0.63 mg/mL.When multiple of dilution of extract from exotesta of G.biloba L.is 100, the mortality against three-year instar larvae P.rapae, imagoes of Phyllotreta strilata and larvae of Liriomyza sativae is 25.00%, 32.50% and (36.67%), respectively.These suggested that the no-choice antifeeding effect of extract from exotesta of G.biloba L.against five-year instar larvae of P.rapae L.is very good, but the contact toxic effect (against) insects is unsignificant.

Key words: Ginkgo biloba L., exotesta, ethanol extract, insect, toxicity

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