六种杀菌剂对马铃薯粉痂病的盆栽防治效果  

Effects of Six Fungicides on Preventing Potato Powdery Scab Under Pot Experiment

作　　者：刘霞[1] 黄勋 赵彬 杨艳丽[1] LIU Xia;HUANG Xun;ZHAO Bin;YANG Yanli(Key Laboratory of Plant Pathology in Yunnan,Institute of Plant Protection,Yunnan Agricultural University,Kunming,Yunnan 650201,China)

机构地区：[1]云南农业大学植物保护学院/云南省植物病理重点实验室,云南昆明650201

出　　处：《中国马铃薯》2021年第4期354-359,共6页Chinese Potato Journal

基　　金：国家自然科学基金青年基金项目(31201255);国家重点研发项目(2018YFD0200808)。

摘　　要：随着马铃薯产业的持续发展,马铃薯粉痂病已成为限制马铃薯种植的重要土传病害,为筛选能有效防控其发生危害的杀菌剂供生产应用,研究采用盆栽拌土和灌根的方法比较了6种杀菌剂对马铃薯粉痂病的防治效果。结果表明,3种杀菌剂对马铃薯粉痂病的防治效果显著,分别是50%嘧菌环胺水分散粒剂、325 g/L苯醚甲环唑·嘧菌酯悬浮剂、560 g/L百菌清·嘧菌酯悬浮剂,防效均达到60%以上,但325 g/L苯醚甲环唑·嘧菌酯悬浮剂对产量影响较大,减产高达84.4%。在生产上可采用50%嘧菌环胺水分散粒剂、560 g/L百菌清·嘧菌酯悬浮剂防治粉痂病,而不推荐使用325 g/L苯醚甲环唑·嘧菌酯悬浮剂。With the continuous development of potato industry,potato powdery scab has become an important soil-borne disease that restricts potato planting.In order to screen fungicides that could effectively prevent and control the damage of potato powdery scab for production and application,the control effects of six fungicides on potato powdery scab were compared by using potted soil mixing and root irrigation.The results showed that three fungicides had better control efficacy on potato powdery scab,including 50%Cyprodinil WG,325 g/L Difenoconazole·azoxystrobin SC,and 560 g/L Chlorothalonil·azoxystrobin SC.The control efficacies of these fungicides were over 60%.But the yield was greater influenced by 325 g/L Difenoconazole·azoxystrobin SC,which reduced the production of up to 84.4%.In the production,50% Cyprodinil WG and 560 g/L Chlorothalonil·azoxystrobin SC could be used to prevent and control powdery scab,while 325 g/L Difenoconazole·azoxystrobin SC is not recommended.

关 键 词：马铃薯 粉痂病 防效 

分 类 号：S532[农业科学—作物学]