9种杀菌剂对番茄晚疫病菌的室内毒力测定  

Laboratory Toxicity Test of 9 Fungicides to Phytophthora infestans

作　　者：姜莉莉[1] 武玉国[2] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]山东农业大学农药环境毒理研究中心,山东泰安271017

出　　处：《世界农药》2015年第2期59-61,共3页World Pesticide

摘　　要：采用菌丝生长速率法测定了新化合物氟醚菌酰胺(LH-2010A)和其他8种杀菌剂对番茄晚疫病菌的室内毒力。结果表明,3种苯甲酰胺类杀菌剂对番茄晚疫病菌的活性均较高,其中以氟吡菌胺为最高,EC_(50)值为0.915 mg/L,新型广谱性杀菌剂氟醚菌酰胺活性居中,EC_(50)值为2.805 mg/L,常用药剂甲霜灵最低(EC_(50)值5.007 mg/L),但仍远高于其他2种广谱性杀菌剂嘧菌酯和多菌灵(EC_(50)值分别为11.69、12.63 mg/L)。此外,霜脲氰和烯酰吗啉对番茄晚疫病菌的活性较高,EC_(50)值分别为1.713、1.915 mg/L;福美双和苯噻菌胺活性居中,EC_(50)值分别为4.641、5.880mg/L。The mycelia linear growth rate method was adopted to determine the laboratory toxicity of LH-2010A and other 8 fungicides to P infestans. Results indicated that 3 benzamides fungicides had exhibited better control efficiency, of which fluopicolide ranked to the first, with EC50 value 0.915 mg · L-1. Novel broad spectrum fungicidal agent LH-2010A showed proper efficiency with EC50 value 2.805 mg ·L-1. The ECs0 value of metalaxyl （5.007 mg · L-1） was still significantly higher than the two common broad spectrum fungicides azoxystrobin and carbendazim （EC50 values 11.69, 12.63 mg· L-1 respectively）. Meanwhile, EC50 values of cymoxanil and dimethomorph were 1.713, 1.915 mg· L-1 respectively, which were higher than thiram and benthiavalicarb （4.641, 5.880 mg · L-1 respectively）.

关 键 词：氟醚菌酰胺 杀菌剂 番茄晚疫病 室内毒力测定 

分 类 号：TQ455[化学工程—农药化工]