摘要
对槌果藤(Capparis spinosa L.)的杀虫活性成分进行了粗提,并采用叶碟法、浸渍法和喷雾法分别测定了各提取物对斜纹夜蛾的拒食活性,氯仿提取物对菜蚜及菜青虫触杀活性,氯仿提取物对菜青虫的田间防效。结果表明:槌果藤各提取物对3龄幼虫均有很好的非选择性拒食活性,其中氯仿提取物活性最高,各提取物对5龄幼虫拒食活性较低;氯仿提取物不仅对菜蚜及菜青虫均有很好的触杀活性,而且对田间种植甘蓝上的菜青虫危害具有良好的防治效果。
Insecticidal active ingredients were roughly extracted with methanol, petroleum ether, chloroform, ethyl acetate, N-butanol and azadirachtin from Capparis spinosa L. The antifeedant activity of each extract against Spodoptera litura was determined by leaf disc method. And the contact toxicity of chloroform extract against Lipaphis erysimi and Pierisrapae Linnaeus was determined by impregnation method. In addition, the field control effect of chloroform extract on Pierisrapae Linnaeus was determined by spray method. The results showed that all the extracts had good non-selective antifeedant activities against the 3rd instar larvae. In particular, the chloroform extract had the highest activity, and each extract had lower antifeedant activity against the 5th instar larvae. Moreover, the chloroform extract not only had good contact toxicity against L. erysimi and Pierisrapae Linnaeus, but also showed a good control effect on Pierisrapae Linnaeus infesting cabbage in the field.
作者
章杰
吴接呈
骆焱平
王兰英
ZHANG Jie;WU Jiecheng;LUO Yanping;WANG Lanying(College of Plant Protection,Institute of Tropical Agriculture and Forestry,Hainan University,Haikou,Hainan 570228,China)
出处
《热带生物学报》
2019年第2期145-150,共6页
Journal of Tropical Biology
基金
2018海南省自然科学基金项目(2018CXTD335)
