摘要
采用叶片浸渍法,2010-2012年连续3年室内测定了5种常用杀螨剂对湖北棉区朱砂叶螨[Tetranychus cinnabarinus（Boisduval）]的毒力,追踪各虫源地朱砂叶螨对5种杀螨剂的敏感度变化。结果表明,荆州棉区朱砂叶螨对炔螨特的敏感度变化呈下降趋势,敏感系数分别为0.60、0.88和1.94;襄阳棉区朱砂叶螨对5种药剂的敏感度总体呈下降趋势,其中,螺螨酯的敏感系数分别为1.75、0.62和7.88;嘉鱼棉区朱砂叶螨对甲维盐的敏感度呈下降趋势,敏感系数分别为0.53、1.39和3.33。
The toxicity bioassay of five common miticides against the adult females of carmine spider mite,Tetranychus cinnabarinus（Boisduval）in Hubei area was carried out using leaf disc residue-dipping method in the laboratory. The susceptibility changes of carmine spider mite from different areas to five common miticides has being afforded. The results shows that the susceptibility of carmine spider mite from Jingzhou to Propargite declined from 2010 s to 2012 s with the susceptibility ratio value of 0.60, 0.88 and 1.94. The susceptibility of carmine spider mite from Xiangyang to all five acaricides declined during2010 s and 2012 s as a whole, and the susceptibility ratio value to Envidor was 1.75, 0.62 and 7.88, respectively. The susceptibility of carmine spider mite from Jiayu to Emamectin benzoate also declined with the susceptibility value of 0.53, 1.39 and 3.33. The paper will afford the scientific guidance to the management of carmine spider mite in Hubei area.
出处
《湖北农业科学》
2015年第20期5031-5034,5039,共5页
Hubei Agricultural Sciences
基金
农业部行业计划项目(200903033)
