瑞香狼毒素对蚜虫防治的初步试验  

Study on Control Effect of Daphneantoxin Against Aphis gossypii

作　　者：曹威[1] 张可君[1] 龚晓霞[1] 侯太平[1] 

机构地区：[1]四川大学生命科学学院,成都610064

出　　处：《四川动物》2005年第4期548-550,共3页Sichuan Journal of Zoology

基　　金：四川省科技厅生物技术专项(NY-02-01)

摘　　要：以从瑞香狼毒(Stellera chamaejasme L.)中提取获得天然活性物质1,5-二苯基-1-戊酮、1,5-二苯基-2-烯-1-戊酮为主体成分,研制成生物灭蚜剂(LX-1),对农业上几类重要蚜虫进行了防治应用的初步试验.结果表明,室内对棉蚜和烟蚜的触杀作用24 h 的LC50分别为81.73 mg/L和83.32 mg/L;并利用该制剂对棉蚜、烟蚜和麦蚜进行了田间防治试验,施药后3～5天防效达到峰值,2400倍稀释度下,防效达93%～99%,显示了较好的应用前景.The bio-aphidicide LX- 1 consists of 1,5 diphenyl- 1 pentanone and 1,5-diphenyl-2-Penten - 1-pentene was separated from Stellera chamaejasme L. The laboratory tests showed that the LC50 of 24h LX-1 for Aphis gossypii G, and Myzus nicotianae B. were 81.73 mg/L and 83.32 mg/L. The control effect of 1/2400 LX-1 in field experiment reached 93 % -99 % 3-5 days after application. The results have laid a strong foundation for the future aplication,

关 键 词：瑞香狼毒素 蚜虫 杀虫活性 防治效果 

分 类 号：S482.39[农业科学—农药学]