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,
出处
《四川动物》
CSCD
北大核心
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)
关键词
瑞香狼毒素
蚜虫
杀虫活性
防治效果
Stellera chamaejasme L,
Aphis
insecticidal activity
control effect
