欢迎访问《中国农学通报》,

中国农学通报 ›› 2016, Vol. 32 ›› Issue (2): 61-67.doi: 10.11924/j.issn.1000-6850.casb15090067

• 植物保护 农药 • 上一篇    下一篇

紫茎泽兰提取物对粘虫触杀作用研究初探

王云梅,付立会,黄修芬,罗晓玲   

  1. (凉山州西昌农业科学研究所,四川西昌 615000)
  • 收稿日期:2015-09-16 修回日期:2015-12-23 接受日期:2015-10-23 出版日期:2016-01-28 发布日期:2016-01-28
  • 通讯作者: 王云梅
  • 基金资助:
    凉山州西昌农业科学研究所自立项目“紫茎泽兰活性成分在农业害虫上的应用研究”。

Contact Toxicity of Extracts of Eupatorium adenophorum Against Armyworm

Wang Yunmei, Fu Lihui, Huang Xiufen, Luo Xiaoling   

  1. (Agricultural Research Institute of Xichang Prefecture in Liangshan, Xichang Sichuan 615000)
  • Received:2015-09-16 Revised:2015-12-23 Accepted:2015-10-23 Online:2016-01-28 Published:2016-01-28

摘要: 为了探索紫茎泽兰活性成分对农业害虫的影响,采用浸虫法测定了紫茎泽兰提取物对粘虫幼虫的触杀作用,并测定不同浓度紫茎泽兰花甲醇提取物对粘虫的触杀和抑制生长发育作用。结果表明:紫茎泽兰不同部位不同萃取剂提取物均对粘虫具有一定的触杀作用,触杀效果较好部位是花和叶,萃取剂是甲醇、丙酮、石油醚。触杀作用随浓度增加而增强,随时间增加而增大,24、48、72 h的致死中量LD50分别为15.27、11.41、7.11 mg/mL。

关键词: 气温变化, 气温变化, 气候突变, 滑动平均, Mann-Kendall, 榆社县

Abstract: In order to explore the effect of active ingredients from Eupatorium adenophorum on agricultural pests, contact toxicity of extracts of Eupatorium adenophorum against armyworm larvae was studied in this paper by dipping method. Then contact toxicity and development inhibition of methanol extracts of Eupatorium adenophorum at different concentrations to armyworm were analyzed. The results showed that there was certain contact toxicity of different concentration extracts from different parts of Eupatorium adenophorum against armyworm. The extract from flowers and leaves of Eupatorium adenophorum using methanol, acetone and petroleum ether as extraction agents had better contact toxicity to armyworm. Contact toxicity was enhanced with the increase of methanol extracts concentration and the increase of time, and LD50 at 24, 48 and 72 h was 15.27, 11.41 and 7.11 mg/mL, respectively.