两种新杀菌剂对番茄灰霉病的作用方式及田间防效  

Action Mode and Field Control Efficiency of Two New Fungicides against Tomato Gray Mould

作　　者：赵建江[1] 王文桥[1] 马志强[1] 孟润杰[1] 毕秋艳[1] 韩秀英[1] 

机构地区：[1]河北省农林科学院植物保护研究所,河北省农业有害生物综合防治工程技术研究中心,农业部华北北部作物有害生物综合治理重点实验室,河北保定071000

出　　处：《中国蔬菜》2016年第5期18-21,共4页China Vegetables

基　　金：河北省农林科学院青年基金项目(A2015120304);“十二五”国家科技支撑计划项目(2012BAD19B06);公益性行业专项(201303023);河北省财政专项(F15C10002,F15C10004)

摘　　要：采用离体叶片法测定了2种新杀菌剂42.8%氟吡菌酰胺·肟菌酯悬浮剂(SC)和22.5%啶氧菌酯SC对番茄灰霉病的作用方式及田间防效。结果表明:42.8%氟吡菌酰胺·肟菌酯SC和22.5%啶氧菌酯SC对番茄灰霉病保护作用的EC50值分别为4.04μg·mL^(-1)和10.79μg·mL^(-1),治疗作用的EC50值分别为26.30μg·mL^(-1)和45.93μg·mL^(-1)。田间试验结果表明,两种新药剂在推荐剂量下对番茄灰霉病防效可达80%以上,可用于番茄灰霉病的防治。The action mode of 42.8% fluopyram ＋ trifloxystrobin SC and 22.5% picoxystrobin SC were tested by in vitro leaves method,and the control efficiency on tomato gray mould was assessed though field trials. The results showed that the EC_（50） values for protective activity of 42.8% fluopyram ＋ trifloxystrobin SC and 22.5% picoxystrobin SC were 4.04 μg·m L^（-1） and 10.79 μg·m L^（-1）,respectively. The EC_（50） values for treatment of these 2 new fungicides were 26.30 μg·m L^（-1） and 45.93 μg·m L^（-1）,respectively. The results of field experiment indicated that the control efficiency of these 2 new fungicides on tomato gray mould applied under the recommended dosages was over 80%. Therefore,they can be used for controlling tomato gray mould.

关 键 词：番茄灰霉病 氟吡菌酰胺 肟菌酯 啶氧菌酯 防治效果 

分 类 号：S436.412.13[农业科学—农业昆虫与害虫防治]