不同药剂对水稻纹枯病·稻瘟病及稻曲病的防治效果

Control Effect of Different Fungicide on Sheath Blight,Blast and False Smut of Rice

[目的]筛选防治水稻纹枯病、稻瘟病和稻曲病的有效药剂。[方法]研究32.5%阿米妙收悬浮剂、24%噻呋酰胺(满穗)悬浮剂、75%肟菌·戊唑醇(拿敌稳)水分散粒剂、250 g/L嘧菌酯悬浮剂、12%井·腊芽(纹曲清)对水稻纹枯病、稻瘟病和稻曲病的防治效果。[结果]5种试验药剂对水稻纹枯病的病指防效为63.86%～85.22%,对水稻穗颈瘟的病指防效在为36.60%～81.88%,对水稻稻曲病的病指防效在48.91%～73.48%。[结论]32.5%阿米妙收对水稻纹枯病、稻瘟病、稻曲病有较好的综合防治效果。

[ Objective ] The aim was to study the effective pesticide to control the sheath blight, blast and false smut of rice. [ Method ] The control effect of 32.5 % Amistar Top SC, 24% Trifluzamide SC, 75% nativo, 250 g/L azoxystrobin suspension concentrate and other insecti- cides on sheath blight, blast and false smut of rice was studied. [ Result] The disease index of 5 kinds of insecticides on rice sheath blight was 63.86% -85.22%, disease index of rice blast was 36.60% - 81.88%, and that of false smut was 48.91% - 73.48%. [ Conclusion] 32.5% Amistar Top SC had the comprehensive control effect on sheath blight, blast and false smut of rice.