两种植物乙醇提取物对甘蓝蚜的触杀作用  

Contact Poisoning of Two Ethanol Extracts from Plants on Cabbage Aphid

作　　者：谢雯颖 杨晓娜 Xie Wenying;Yang Xiaona(College of Resources and Environment,Baoshan University,Baoshan 678000,Yunnan,China)

机构地区：[1]保山学院资源环境学院,云南保山678000

出　　处：《农业技术与装备》2018年第9期4-5,7,共3页Agricultural Technology & Equipment

摘　　要：通过试验分析得知:香茅草乙醇提取物对甘蓝蚜的触杀效果在3个浓度梯度上有极显著差异,即浓度为1∶1时平均校正死亡率最高为42.4%,浓度为1∶10时平均校正死亡率最低为23.7%。在不同观察时间平均校正死亡率有极显著差异,在24~48 h内平均校正死亡率最高达到41.6%;在3个浓度梯度上紫茎泽兰乙醇提取物对甘蓝蚜的触杀效果差异极为显著,即在浓度为1∶1时平均校正死亡率最高达到40.8%,在浓度1∶10时最低仅为24.4%。The results showed that the contact efficacy of ethanol extract from citronella was evidently different in three concentration gradients for cabbage aphid. The highest average corrected mortality was 42.4% when the concentration was 1：1, and the lowest was 23.7% when the concentration was 1：10. The average corrected mortality of eupatorium adenophorum was 41.6% within 24-48 hours, and the contact effect of eupatorium ethanol extract on cabbage aphid was significantly different among the three concentration gradients. The highest corrected mortality was 40.8% at the concentration of 1：1 and at the concentration of 1：1. At 1：10, it was only 24.4%.

关 键 词：甘蓝蚜 触杀作用 植物乙醇 提取物 

分 类 号：S14-33[农业科学—肥料学]