不同药剂组合对马铃薯晚疫病的防治效果  

Control Efficacy of Different Fungicide Combinations on Potato Late Blight

作　　者：韩小女 展康 蔡永占 何彩花 吕庆长 杨亚琼 HAN Xiaonu;ZHAN Kang;CAI Yongzhan;HE Caihua;LU Qingchang;YANG Yaqiong(Xuanwei Seed Potato Research and Development Center,Xuanwei,Yunnan 655400,China;Yunnan Qujing Tobacco Corporation,Qujing,Yunnan 655000,China)

机构地区：[1]宣威市马铃薯种薯研发中心,云南宣威655400 [2]云南省烟草公司曲靖市公司,云南曲靖655000

出　　处：《中国马铃薯》2020年第1期46-52,共7页Chinese Potato Journal

基　　金：国家马铃薯产业技术体系专项资金(CARS-10)。

摘　　要：马铃薯晚疫病是马铃薯生产中的重要病害,是影响马铃薯产量和品质的重要因素之一,在云南春作马铃薯上普遍发生,且危害较重,给当地马铃薯产业带来了巨大的经济损失。为减轻马铃薯晚疫病对马铃薯生产造成的损失,试验研究了11种药剂7种药剂组合(包衣剂+保护剂+治疗剂)通过播种期种薯包衣,现蕾期叶面喷施一次保护剂,发病初期和发病中期叶面各喷一次治疗剂的方法防治马铃薯晚疫病。结果表明,药剂组合种薯包衣+甲霜·锰锌+氟吡菌胺·霜霉威的防治效果最好,防治效果达到60.99%,增产率176.28%,增效率152.27%;其次是种薯包衣+霜脲·锰锌+氟吡菌胺·霜霉威组合,防治效果达到60.15%,增产率173.20%,增效率150.55%。这2个药剂组合对马铃薯晚疫病均有极显著的防治效果,增产增效明显。Potato late blight is an important disease in potato production,which is one of the important factors affecting the yield and quality of potato.It generally occurs in spring potato production in Yunnan Province and has a serious harmness,bringing huge economic loss to the local potato industry.To reduce the loss caused by the potato late blight of potato production,seven combination(coating agents+protective agents+therapeutic agents)of 11 fungicides were applied by coating the seed potatoes at seeding,spraying a protective agent on the leaf at budding,and spraying a therapeutic agent on the leaf in the early and middle diseased periods for prevention and control of potato late blight.The control effect of the combination of seed potato coating+metalaxyl·mancozeb+fluopicolide·propamocarb was the best,with a control efficacy of 60.99%,yield increase percentage of 176.28%,and benefit increase percentage of 152.27%.The second was the combination of seed potato coating+cymoxanil·mancozeb+fluopicolide·propamocarb,with a control efficacy of 60.15%,yield increase percentage of 173.20%and benefit increase percentage of 150.55%.These two combinations have highly significant control effect on potato late blight,and increase yield and benefit.

关 键 词：不同药剂组合 马铃薯晚疫病 防治效果 

分 类 号：S532[农业科学—作物学]