八种杀线剂对南方根结线虫的毒杀活性测试  

Toxicidal activity of eight kinds of nematicides against Meloidogyne incognita

作　　者：何轶 蔡志豪 李彩斌 彭宇 李章海[3] 黄衍章[2] HE Yi;CAI Zhi-hao;LI Cai-bin;PENG Yu;LI Zhang-hai;HUANG Yan-zhang(Bijie Branch,Guizhou Tobacco Company,Bijie 551700,Guizhou,China;School of Plant Protection,Anhui Agricultural University,Hefei 230036,China;Research Centre of Tobacco and Health,University of Science and Technology of China,Hefei 230052,China)

机构地区：[1]贵州省烟草公司毕节市公司,贵州毕节551700 [2]安徽农业大学植物保护学院,合肥230036 [3]中国科学技术大学烟草与健康研究中心,合肥230052

出　　处：《湖北农业科学》2022年第4期70-73,共4页Hubei Agricultural Sciences

基　　金：贵州省烟草公司科技项目(2020XM09);贵州省烟草公司毕节市公司科技项目(2020520500240016;2018520500240058)。

摘　　要：为筛选出高效低毒的烟草根结线虫病防治药剂,采用浸虫法测试了8种低毒杀线(虫)剂对南方根结线虫(Meloidogyne incognita)J_(2)幼虫的毒杀活性。结果表明,8种供试药剂以阿维菌素B_(2)、噻唑膦和氟吡菌酰胺的毒杀效果较好,以50μg/mL处理24 h时线虫的校正死亡率均为100.00%。毒力测试结果表明,阿维菌素B_(2)、噻唑膦和氟吡菌酰胺处理J_(2)幼虫24 h的LC_(50)分别为0.56、8.30、6.24μg/mL,以阿维菌素B_(2)的毒杀效果最佳。In order to screen out effective and low toxicity nematicides for control of tobacco root-knot nematode disease,toxicidal activity of eight hypotoxicity pesticides against the J_(2) larvae of Meloidogyne incognita was tested by pestimmersion method.The results showed that of above eight pesticides,the abamectin B_(2),fosthiazate and fluopyram produced excellent toxicity,and all of the three pesticides caused 100.00%of corrected mortality with a concentration of 50μg/mL at 24 h post-treatment.Further tests showed that abamectin B_(2),fosthiazate and fluopyram produced 0.56,8.30 and 6.24μg/mL of LC_(50) against J_(2) larvae at 24 h post-treatment,corre⁃spondingly.Of the three pesticides,abamectin B_(2) showed best toxicidal activity against the Meloidogyne incognita.

关 键 词：南方根结线虫(Meloidogyne incognita) 杀线剂 毒杀活性 阿维菌素B_(2) 

分 类 号：S432.45[农业科学—植物病理学]