紫茎泽兰乙醇提取物对美国白蛾幼虫的生物活性测定  

Bioassay of the ethanol extracts of Eupatorium adenophorum against larvae of Hyphantria cunea

作　　者：范立鹏[1] 王志刚[1] 毕拥国[1] 任志彬[1] 黄永刚[2] 苏丽艳 王学良 

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北保定市农业局,河北保定071000 [3]河北玉田镇农技站,河北玉田0641003 [4]河北玉田唐字头镇农技站,河北玉田0641003

出　　处：《河北农业大学学报》2010年第3期97-99,103,共4页Journal of Hebei Agricultural University

基　　金：石家庄科学技术研究与发展计划(10152292A)

摘　　要：为寻求新的美国白蛾生物防治方法,本试验采用不同浓度紫茎泽兰乙醇提取物处理4龄美国白蛾幼虫,采用微量点滴法和夹毒叶片法分别测定提取物对4龄美国白蛾幼虫的致死率,研究紫茎泽兰提取物对美国白蛾幼虫的生物活性。结果表明:各级浓度提取物乙醇溶液对美国白蛾各龄级幼虫均有不同程度的杀灭效果,5.0、2.0、1.0、0.5和0.25 g/L紫茎泽兰乙醇提取物溶液处理的4龄美国白蛾幼虫24 h后,校正死亡率为64.85%、63.15%、53.77%、34.56%和3.89%。In order to research the new methods of biological control on Hyphantria cunea, different concentrations of ethanol extract of Eupatoriurn adenophorum were used to deal with 4th instars larvae of H. cunea. Bit titration method and folders micro-poisonous leaves method were measured on the 4th instars larvaes of H. cunea. Results indicated that all levels of the concentrations of ethanol extract have different levels of killing effect. The corrected mortality were 64.85%, 63. 15%, 53.77%, 34. 56% and 3.89% by the 5 concentrations of Eupatorium adenophorum treated with 5.0, 2.0, 1.0, 0.5 and 0.25 g/L extract of ethanol.

关 键 词：紫茎泽兰 提取物 美国白蛾 生物活性测定 

分 类 号：S763[农业科学—森林保护学]