摘要
为筛选出防治香蕉叶斑病的适宜药剂,选用18.7%丙环唑·嘧菌酯悬浮剂、250 g/L嘧菌酯悬浮剂、250 g/L丙环唑乳油、50%氟环唑悬浮剂共4种杀菌剂,运用田间喷雾的方法,开展香蕉叶斑病田间药效试验。结果表明,18.7%丙环唑·嘧菌酯悬浮剂有效成分168.3 g/hm2处理防效最好,2次施药后14 d的防效为84.54%;其次是250 g/L嘧菌酯悬浮剂有效成分225 g/hm2处理,防效为73.37%;250 g/L丙环唑乳油有效成分225 g/hm2处理防效为71.65%;50%氟环唑悬浮剂有效成分225 g/hm2防效最差,为71.35%。由此说明,18.7%丙环唑·嘧菌酯悬浮剂有效成分168.3 g/hm2可有效防治香蕉叶斑病。
In order to screen out suitable agents for controlling banana leaf spot disease,the field efficacy test of the four fungicides against banana leaf spot disease was carried out by spraying 18.7% propiconazol·azoxystrobin SC,250 g/L azoxystrobin SC,250 g/L propiconazol EC and 50% epoxiconazole SC.The results showed that the control effect of 18.7% propiconazol·azoxystrobin SC effective component 168.3 g/hm^2 was the best,and the control effect was 84.54%(14 days after the second application).The control effect of 250 g/L azoxystrobin SC effective component 225 g/hm^2 was the second,which was 73.37%.The control effect of 250 g/L propiconazol EC effective component 225 g/hm^2 was 71.65%.The control effect of 50% epoxiconazole SC effective component 225 g/hm2 was the worst,which was 71.35%.Therefore,18.7% propiconazol·azoxystrobin SC could effectively control banana leaf spot disease.The recommended dose is effective component 168.3 g/hm^2 in fields.
作者
陈照
刘文波
CHEN Zhao;LIU Wen-bo(Xiuying Agricultural and Forestry Bureau of Haikou City in Hainan Province,Haikou Hainan 570100;College of Plant Protection,Hainan University)
出处
《现代农业科技》
2019年第3期83-84,共2页
Modern Agricultural Science and Technology
基金
海南省自然科学基金项目(20153131
20163040)
海南茄果类蔬菜化肥农药减施增效技术研究项目(1630052016007)
关键词
香蕉叶斑病
杀菌剂
防效
banana leaf spot disease
fungicide
control effect
