| 摘要: |
| 测定了氯氰菊酯、氧化乐果、马拉硫磷、甲基对硫磷、久效磷、灭多威、吡虫啉、烟碱等8种杀虫剂对陕西棉蚜的毒力，并与1994，1995年测定结果比较，结果表明，陕西棉蚜对氯氰菊酯的抗药性发展很快，抗性倍数已达884.19的极高抗水平；对有机磷农药的抗药性发展比较平缓，抗性倍数为0.83～11.36，处于中低水平；对灭多威的抗药性发展呈下降趋势,抗性倍数为16.60；在供试药剂中，吡虫啉的相对毒力最高， LD50=1.043ng/头. |
| 关键词: 棉蚜 抗药性 杀虫剂 化学防治 陕西 |
| DOI： |
| 分类号:S481.4；S435.622.1 |
| 基金项目: |
|
| A study on the development of Aphis Gossypii resistance to insecticide in Shaanxi Province |
|
CHEN An liang,FENG Jun tao,ZHANG Xing,CHEN An liang,FENG Jun tao,ZHANG Xing,CHEN An liang,FENG Jun tao,ZHANG Xing
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| Abstract: |
| The resistance of Aphis Gossypii to several insecticides was measured in 1998.The results showed that, to Cyhalothrin, the resistance level was very high, and increasing speed was fast; to Ops, the resistance level was still in susceptible, susceptibility decreasing stage ormoderate level and it's resistance change was rather low; the resistance index tomethoryl reached to 16.60, but there was a downward tendency in it's resistance development.Some other methods of using insecticide to control Aphis Gossypii were discussed in this paper as well. |
| Key words: aphid,resistance,aphicide,chemical control,Shaanxi |
