氟醚菌酰胺和缬霉威对马铃薯晚疫病菌增效及田间防效  

Synergism and field control effect of mixtures of fluopimomide and iprovalicarb against Phytophthora infestans

作　　者：迟会伟 韩君 唐剑峰 王震 阴冠津 CHI Huiwei;HAN Jun;TANG Jianfeng;WANG Zhen;YIN Guanjin(Shandong Sino-agri United Biotechnology Co.,Ltd.,Jinan 250100,China;Tai′an Ecological Environment Monitoring Center of Shandong Province,Tai′an 271000,Shandong,China)

机构地区：[1]山东中农联合生物科技股份有限公司,济南250100 [2]山东省泰安生态环境监测中心,山东泰安271000

出　　处：《农药》2023年第9期680-683,共4页Agrochemicals

摘　　要：[目的]探索氟醚菌酰胺和缬霉威对马铃薯晚疫病菌的生物活性、最佳增效比例以及田间防效。[方法]室内采用菌丝生长速率法分别测定了2个药剂杀菌活性,以及不同比例下的增效系数。[结果]氟醚菌酰胺和缬霉威对马铃薯晚疫病菌菌丝生长均有较好的抑制效果,EC_(50)值分别为0.4288、0.2942 mg/L;在试验配比范围内,最佳增效比例为1:6;35%氟醚·缬霉威SC制剂用量1200 mL/hm^(2)对马铃薯晚疫病的田间防效达到85%以上,高于对照药剂。[结论]氟醚菌酰胺和缬霉威复配可用于马铃薯晚疫病的防治。[Aims]To explore the toxicity value,optimal synergistic effect of fluopimomide and iprovalicarb against Phytophthora infestans,as well as the potato late blight control of the compound formula in the field.[Methods]In the laboratory,the inhibition effect of fluopimomide and iprovalicarb on P.infestans was determined by the mycelium growth rate method.And the synergistic coefficients under different proportions were analyzed.[Results]The results showed that fluopimomide and iprovalicarb obviously inhibited the vegetative growth of P.infestans,with EC_(50) values of 0.4288,0.2942 mg/L,respectively.The optimal combination ratio was 1:6 among the tests.And we demonstrated that the control effect of fluopimomide·iprovalicarb 35%SC with a dosage of 1200 mL/ha reached more than 85%in the field,which was higher than that of the control agents.[Conclusions]The composition of fluopimomide and iprovalicarb can be used for the control of potato late blight.

关 键 词：氟醚菌酰胺 缬霉威 复配 马铃薯晚疫病 增效 田间防效 

分 类 号：S482.2[农业科学—农药学]