10%寡聚酸碘·丙硫菌唑悬浮剂防治水稻恶苗病试验

Control Effect of Iodine Oligosaccharide Acids·Prothioconazole 10% SC on Rice Bakanae Disease

[目的]筛选防治水稻恶苗病的有效药剂,确定10%寡聚酸碘·丙硫菌唑悬浮剂对水稻恶苗病的防治效果,建立10%寡聚酸碘·丙硫菌唑悬浮剂防治水稻恶苗病使用技术。[方法]采取水稻浸种的处理方式,在水稻苗床和移栽田进行小区对比试验,分别在水稻插秧前及水稻抽穗期,调查苗床和移栽田的防治效果。[结果]10%寡聚酸碘·丙硫菌唑悬浮剂对水稻恶苗病有优异防治效果,50～100 mga.i./L质量浓度下浸种对水稻恶苗病的防效在90%以上,建议寡聚酸碘复配剂在防治水稻恶苗病上推广使用。

[Aims]This study aims to screen out the fungicide which has good control effect against rice bakanae disease, and to evaluate the control effect of iodine oligosaccharide acids·prothioconazole 10% SC and establish an application technique by using the iodine oligosaccharide acids·prothioconazole 10% SC against the rice bakanae disease.[Methods]By using the seed-immersion method, the control effect of iodine oligosaccharide acids ·prothioconazole 10% SC against rice bakanae disease were studied on seedling beds before rice transplanting and in field trails at the heading date of rice.[Results]The results showed that the iodine oligosaccharide acids ·prothioconazole 10% SC offered prefect efficacy against the rice bakanae disease and the control effects were over 90% at the dosages of 50-100 mg a.i./L. The mixtures of iodine oligosaccharide acids can be used on rice against the rice bakanae disease.