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。
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 or moderate level and its resistance change was rather low;the resistance index to methoryl reached to 16.60,but there was a downward tendency in its resistance development.Some other methods of using insecticide to control Aphis Gossypii were discussed in this paper as well.
出处
《西北农业大学学报》
CSCD
北大核心
2000年第1期48-51,共4页
Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)
关键词
棉蚜
抗药性
杀虫剂
化学防治
陕西
aphid
resistance
aphicide
chemical control
Shaanxi
