烯肟菌胺及其与丙森锌复配对番茄早疫病的防效评价  

Evaluation on Control Efficiency of Mixtures Containing Fenaminstrobin and Propineb against Tomato Early Blight

作　　者：陈宇 郑雪松 张智能 李志念 张苏铭 

机构地区：[1]中化农化有限公司,上海200002 [2]沈阳中化农药化工研发有限公司,新农药创制与开发国家重点实验室,辽宁沈阳110021 [3]沈阳化工研究院(南通)化工科技发展有限公司,江苏南通110021

出　　处：《中国蔬菜》2016年第5期41-45,共5页China Vegetables

基　　金：中化股份科技投入计划项目(092013011y)

摘　　要：采用孢子萌发法测定了烯肟菌胺与丙森锌按照不同配比(质量比1∶1、1∶3、1∶5、1∶7及1∶9)复配对番茄早疫病菌的联合毒力,并验证了60%烯肟菌胺·丙森锌(质量比1∶9)水分散粒剂(WG)对番茄早疫病的的田间防治效果。结果表明:烯肟菌胺与丙森锌单剂对茄链格孢菌的EC50值分别为1.5140mg·L-1和11.9888mg·L^(-1),烯肟菌胺与丙森锌按1∶1、1∶3、1∶5、1∶7及1∶9混配时均表现出明显的增效效应。田间试验结果表明,在番茄早疫病发病初期间隔7d连续喷施2次60%烯肟菌胺·丙森锌WG对番茄早疫病具有较好防效,推荐剂量为480~960g·hm^(-2)。Synergic toxicity of mixture containing fenaminstrobin and propineb at different mass ratios（1∶1,1∶3,1∶5,1∶7,1∶9）on tomato early blight was tested by spore germination method,and field application effect of the mixed fenaminstrobin and propineb 60% WG（mass ratios 1∶9）on tomato early blight was also evaluated. The results showed that the EC_（50） of fenaminstrobin and propineb to Alternaria solani were 1.514 0 mg·L^（-1） and 11.988 8 mg·L^（-1）,respectively. The 5 matching mass ratios（1∶1,1∶3,1∶5,1∶7,1∶9）all showed obvious synergistic effects. The results of field experiment indicated that tomato early blight could be controlled by the mixed fenaminstrobin and propineb 60% WG twice every other week during the initial stage of leaf spot occurance,and the recommended dosage was 480-960 g·hm^（-2）.

关 键 词：烯肟菌胺 丙森锌 复配 番茄早疫病 联合毒力 田间防效 

分 类 号：S436.412.14[农业科学—农业昆虫与害虫防治]