作　　者： ; ; ; ; ; ; (周健勇）;

机构地区： 广东出入境检验检疫局

出　　处： 《植物检疫》 2010年第3期26-28,共3页

摘　　要： 为寻求防治扶桑绵粉蚧高效低毒的有效化学药剂,在室内条件下测定了6种化学药剂对该虫的致死效果,在此基础上筛选出具有增效作用的复配药剂。结果表明除氟虫腈外,其余5种供试药剂对扶桑绵粉蚧均具有明显的致死作用,6种供试药剂的敏感程度依次为:啶虫脒>吡虫啉>高氯苯油>乐斯苯>溴虫腈>氟虫腈,其中啶虫脒、吡虫啉和高氯苯油可作为扶桑绵粉蚧化学防治的备选药剂。吡虫啉和高氯苯油复配具有明显的增效作用,按两者LC50(分别为1.29 mg/L和31.67mg/L)有效浓度,其最佳配比为6:4,毒性比和共毒系数分别为2.25和195.6。 Toxicity of six chemical insecticides to Phenacoccus solenopsis was tested in the laboratory. The results showed that except for fipronil, five insecticides had significant lethal effect to P. solenopsis. The susceptibility of P. solenopsis to these insecticides was ranked from high to low as following： acetamiprid 〉 imidacloprid 〉 high- chlorobenzene 〉 chlorpyrifos 〉 chlorfenapyr 〉 fipronil. One compound mixed with imidacloprid and highchloro- benzene at a ratio of 6：4 had a synergistic effect to P. solenopsis based on LC50 of 1.29 mg / L and 31.67mg / L, respectively. The toxicity ratio and co -toxicity of this mixture were 2.25 and 195.6, respectively. As a conclusion, we recommended acetamiprid, imidacloprid, highchlorobenzene and the developed compound with imidaclo- prid and highchlorobenzene as alterative chemicals to control this insect pest.

关 键 词： 扶桑绵粉蚧 乐斯本 吡虫啉 高氯苯油 啶虫脒 溴虫腈 毒力测定

领　　域： [农业科学] [农业科学]