45%噻呋酰胺·嘧菌酯SC对马铃薯黑痣病的田间防效  

Control Effects of Thifluzamide·Azoxystrobin 45% SC against Potato Black Scurf

作　　者：杨春[1] YANG Chun(Cold Region Crops Research Institute,Shanxi Academy of Agricultural Sciences,Datong 037008,Shanxi,China)

机构地区：[1]山西省农业科学院高寒区作物研究所

出　　处：《农药》2019年第11期838-840,共3页Agrochemicals

基　　金：山西省科技厅政府购买科技公共服务项目(2017-2019);国家现代农业产业技术体系(CARS-09-ES02)

摘　　要：[目的]明确45%噻呋酰胺·嘧菌酯SC对马铃薯黑痣病的防治效果,为生产上应用提供理论依据。[方法]采用沟施进行田间药效试验。[结果]45%噻呋酰胺·嘧菌酯SC 202.5g a.i./hm^2的防效最好,植株发病率最低(5.75%),2年的块茎防效分别达到73.53%、74.71%,与嘧菌酯处理没有显著差异;45%噻呋酰胺·嘧菌酯SC 168.75g a.i./hm^2保苗性最好,产量最高,防治效果与25%嘧菌酯SC差异不显著。[结论]45%噻呋酰胺·嘧菌酯SC沟施对马铃薯黑痣病有较好的防治效果,推荐使用剂量168.75~202.5g a.i./hm^2。[Aims]This study aims to clarify the control effects of thifluzamide·azoxystrobin 45% SC against potato black scurf,and to provide the basis for security application in yield.[Methods]Furrow method was adopted to investigate the efficacy of field trial.[Results]The results showed that thifluzamide·azoxystrobin 45%SC 202.5 g a.i./ha displayed the best control effect and the lowest incidence rate of plants(5.75%),the tuber control effect of two years reached 73.53 and 74.71% respectively,there was no significant difference from azoxystrobin treatment;thiazolamide·azoxystrobin 45% SC168.75 g a.i./ha had the best seedling retention and the highest yield,the control effect was not significantly different from azoxystrobin 25% SC.[Conclusions]Field trials demonstrated that furrow application of thifluzamide·azoxystrobin 45% SC at the rate of 168.75-202.5ga.i./ha had good efficacy on control of potato black scurf.

关 键 词：45%噻呋酰胺·嘧菌酯SC 马铃薯黑痣病 防治效果 

分 类 号：S482.2[农业科学—农药学]