4种植物粗提物对粘虫及小菜蛾的毒力作用  

The Virulence of Four Plant Crude Extracts to Mythimna seperata and Plutella xylostella

作　　者：黄守敏[1] 胡向奇 HUANG Shoumin;HU Xiangqi(Department of Landscape and Gardening, Anqing Vocational and Technical College, Anqing, Anhui 246003)

机构地区：[1]安庆职业技术学院园林园艺系,安徽安庆246003

出　　处：《绵阳师范学院学报》2020年第5期60-63,共4页Journal of Mianyang Teachers＇ College

基　　金：安徽省自然科学研究项目“皖西南地区多种植物杀虫活性筛选及水苏的杀虫作用研究”(KJ2017A785)。

摘　　要：为筛选出具有较高杀虫活性的植物,采用乙醇浸泡方法提取了水苏(Stachys japonica)、草木犀(Melilotus officinalis)、小窃衣(Torilis japonica)和马蹄金(Dichondra repens)4种植物的粗提物,测定了其对粘虫(Mythimna seperata)的触杀作用及对小菜蛾(Plutella xylostella)的熏蒸作用和体重的影响.结果表明,这4种植物的粗提物都具有一定的杀虫活性,比较而言,水苏提取物对粘虫和小菜蛾的毒力作用,以及对小菜蛾体重的影响较明显.In order to select plants with high insecticidal activity,crude extracts of Stachys japonica,Melilotus officinalis,Torilis japonica and Dichondra repens were extracted by soaking in ethanol,and their effects on touching Mythimna seperata,fumigation of Plutella xylostella and body weight were measured.The results showed that the crude extracts of the four plants had some insecticidal activities,and the virulence of the extracts on the Mythimna seperata and Plutella xylostella,as well as the effect on the body weight of Plutella xylostella were more obvious.

关 键 词：植物粗提物 粘虫 小菜蛾 杀虫活性 

分 类 号：S482.39[农业科学—农药学]