摘要： 用乙醚、丙酮、乙醇三种有机溶剂浸提的苦瓜叶片提取液涂抹白菜叶后饲喂小菜蛾幼虫(Plutella xylostella L.),结果表明,三种有机溶剂提取液不同浓度饲喂试虫,随浓度增高,其取食量逐渐减少,生长速率逐渐减慢,存活率显著下降。其中50%的乙醚提取液作用最强。
关键词:
苦瓜,
小菜蛾,
提取液
Abstract: The balsam pear leaves were macerated with three kinds of organic solution,which was ether,acetone or ethanol.The larvae of plulella xylostella were separately fed with the leaves of cabbage,which were smeared by the extract liquids.The experimental results showed that consumption of leaves decreased and the growth and survival rate also decreased.Among diffferent concentration of the three extract liquids,50% of ether extract liquid was the most effective.
Key words:
Balsam pear,
Plutella xyloslella L.,
Extract liquids
中图分类号:
陈宏, 靳阳, 董华, 彭永康. 不同浓度苦瓜叶片提取液对小菜蛾幼虫行为及存活的影响[J]. 华北农学报, 1999, 14(4): 117-121. doi: 10.3321/j.issn:1000-7091.1999.04.022.
Chen Hong, Jin Yang, Dong Hua, Peng Yongkang. Effects of Extracts of Balsam Pear Leaves on Life and Behavir of Plulella xylostella.L[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1999, 14(4): 117-121. doi: 10.3321/j.issn:1000-7091.1999.04.022.