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中国农学通报 ›› 2005, Vol. 21 ›› Issue (11): 325-325.

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寿星桃品种“寿粉”叶片提取物对桃蚜的杀虫活性测定

王占松,尹淑萍,张 文,金万梅,赵剑波   

  • 出版日期:2005-11-05 发布日期:2005-11-05

Insecticidal Activities of Extracts from Shou Fen against Myzus Persicae (Suzer)

Wang Zhansong, Yin Shuping, Zhang Wen, Jin Wanmei, Zhao Jianbo   

  • Online:2005-11-05 Published:2005-11-05

摘要: 利用水、乙醇、石油醚和乙酸乙酯等4种溶剂提取寿星桃品种“寿粉”叶片中的活性物质,通过触杀和内吸实验,测定了各提取物对桃蚜(Myzus persicae)的杀虫活性。结果表明,在触杀试验中,乙醇和石油醚提取物对桃蚜有较好的杀虫效果,以2000 mg/L乙醇提取物对桃蚜虫处理,18h后蚜虫死亡率达到68%;在内吸实验中,乙醇提取物活性最高,用2500mg/L浓度处理时,死亡率在6~18h内变化不大,均为60%~65%;24h后死亡率达到80%,30h,36h后死亡率分别为83.7%,85%。

Abstract: This experiment showed the extracts from leaves of Shou Fen had a good insecticidal activity to Myzus persicae. In the experiment of contact toxicities, extracts of ethanol and petroleum ether had a better insecticidal activity to M. persicae. After M. per