| 摘要: |
| 1983～1985年对北京不同地区甘蓝上菜青虫的抗药性进行了监测,用毛细管微量点滴法测定来自不同区县的试虫,结果表明菜青虫对敌百虫和敌敌畏都有高度抗性,对拟除虫菊酯类药剂,不同区县,抗药性有较大差别,以海淀区马连洼抗性最高,昌平农场最敏感,两地区的菜青虫对溴氰菊酯、氰戊菊酯的抗性分别相盖约10倍和4倍,延庆和大兴居中,与菊酯类药剂的使用历史与水平一致。海淀区使用溴氰菊酯不超过五年的历史,近两年抗性发展迅速。1984年、1985年的 LD_(50)值分别是1983年的5倍和19倍,对其它未使用过的氯氰菊酯、北京菊酯Ⅰ、戊菊酯等表现有交互抗性。本文还对混配增效延缓抗性发展的问题进行了讨论。 |
| 关键词: 敌百虫 除虫菊 抗药性监测 北京地区 海淀区 交互抗性 敌敌畏 抗性发展 菜青虫 不同地区 |
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| Abstract: |
| In 1983-1985,the monitoring of cabbage worm(Artogeia rapae L.) resistance to insecticides had been conducted in four districts of Beijing.The worm strains were collected from cabbage field and tested with seven insecticides by means of micro-capillary topical application method. The results showed that all strains collected from different districts had developed high resistance to the organic phosphorous insecticides trichlorfon and DDVP,while for pyrethroid,defferent resistance levels were observed.The wor... |
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