摘要
为筛选防治马铃薯晚疫病安全有效的杀菌剂,采用田间试验的方法,研究了20%氟吗啉·氟啶胺悬浮剂等5种杀菌剂对马铃薯晚疫病的田间防治药效。试验结果表明:20%氟吗啉·氟啶胺悬浮剂360 g a.i./hm^2、687.5 g/L氟菌·霜霉威悬浮剂1 030 g a.i./hm^2、500 g/L氟啶胺悬浮剂240 g a.i./hm^2药剂处理对马铃薯晚疫病的防效均达80%以上,50%烯酰吗啉可湿性粉剂225 g a.i./hm^2、80%代森锰锌可湿性粉剂2 160 g a.i./hm^2也具有良好的防治效果,可作为有效防治药剂交替使用,在试验用量下对马铃薯植株安全未出现药害和其他不良反应。同时,结合本地区的马铃薯种植情况、气候条件和杀菌剂使用现状,选择合适的药剂进行防治。
In order to screen safe and efficient fungicides against potato late blight,field trials were conducted to study the efficacy of 5 fungicides,such as 20% flumorph fluazinam,against potato late blight.The results showed that the control efficacy of 20% flumorph fluazinam with a dosage of 360 g a.i./hm^2,687.5 g/L fluopicolide·propamocarb hydrochloride suspension concentrate with a dosage of 1 030 g a.i./hm^2,and 500 g/L fluazinam with a dosage of 240 g a.i./hm^2 against potato late blight were all above 80%.While 50% Dimethomorph wettable powder with a dosage of 225 g a.i./hm^2,and 80% mancozeb wettable powder with a dosage of 2 160 g a.i./hm^2 also had good control effects.There was no harm or other adverse reaction to the potato plants under the test dosage.So it was proposed in the paper that,based on the situation of potato planting,climate conditions,and the use of fungicides in different region,appropriate fungicides should be selected for the prevention and treatment.
作者
刘洁
凌飞
冯烨宏
孙亮
赵楠
王鹏
LIU Jie;LING Fei;FENG Yehong;SUN Liang;ZHAO Nan;WANG Peng(Yantai Academy of Agricultural Sciences,Yantai,Shandong 265500,China;Shandong Ocean Culture Tourism Development Co.,Ltd,Rizhao,Shandong 276800,China;Agricultural Technology Extension Station of Laizhou,Yantai,Shandong 261400,China)
出处
《生物灾害科学》
2018年第4期303-306,共4页
Biological Disaster Science
关键词
杀菌剂
马铃薯
晚疫病
田间防效
fungicide
potato
late blight
field trial efficacy
