农业环境科学学报Issue(5)：875-881,7.DOI:10.11654/jaes.2014.05.008
新农药氯溴虫腈在甘蓝和土壤中的残留及持久性
Residues and Persistence of Novel Insecticide HNPC-A3061 in Chinese Cabbages and Soils
摘要
Abstract
Brochlorfenapyr, test code:HNPC-A3061;chemical name:1-(2-chloroethoxy)methyl-4-brom-2-(4-chlorophenyl)-5-tirflu-oromethylpyrrol-3-nitrile), is a novel pyrrole insecticide discovered by Hunan Research Institute of Chemical Industry, and is used to con-trol pest insects on crops such as vegetables, rice and cotton. Field experiments were conducted to study the residues and dissipation dynam-ics of HNPC-A3061 in Chinese cabbages, and soils in Hunan, Hebei and Jiangsu for two years. The initial deposition of HNPC-A3061 on Chinese cabbages was 2.686 mg·kg-1, 1.715 mg·kg-1 and 2.603 mg·kg-1 in 2012, and 4.859 mg·kg-1, 2.665 mg·kg-1 and 1.755 mg·kg-1 in 2013 for Hunan, Hebei and Jiangsu, respectively. The half life of HNPC-A3061 on Chinese cabbages was 5.28 d, 5.14 d and 6.16 d in 2012, and 7.17 d, 6.42 d and 10.73 d in 2013 for Hunan, Hebei and Jiangsu, respectively. The initial amounts of HNPC-A3061 deposited on soils were 1.284 mg·kg-1, 0.451 mg·kg-1 and 0.298 mg·kg-1 in 2012, and 0.705 mg·kg-1, 0.691 mg·kg-1 and 0.648 mg·kg-1 in 2013 for Hunan, Hebei and Jiangsu, respectively. In soils, HNPC-A3061 had a half life of 13.05 d, 7.87 d and 11.12 d in 2012, and 2.75 d, 2.32 d and 5.94 d in 2013 for Hunan, Hebei and Jiangsu, respectively. Based on the classification of pesticide residues of China, HNPC-A3061 was a low toxic and non-persistent pesticide. When spaying 3~4 times with the recommended dosages of 18 g a.i.·hm-2 and 27 g a.i.·hm-2, the final maximum residue levels (MRL)of HNPC-A3061 in Chinese cabbages and soils were 0.290 mg·kg-1 and 0.141 mg·kg-1 at 14 d af-ter the last application, respectively. These values were lower than the standard of 1.0 mg·kg-1 with pre-harvest interval of 14 d established by US EPA for the same class insecticide chlorfenapyr in Chinese cabbages.关键词
氯溴虫腈/甘蓝/土壤/消解动态/最终残留Key words
brochlorfenapyr(HNPC-A3061)/Chinese cabbages/soils/dissipation dynamics/residues分类
化学化工引用本文复制引用
阳承虎,欧晓明,刘红玉,梁骥,付启明,源任竞,聂思桥..新农药氯溴虫腈在甘蓝和土壤中的残留及持久性[J].农业环境科学学报,2014,(5):875-881,7.基金项目
十二五国家科技支撑计划课题 （）
