坪用草地早熟禾褐斑病防治的初步研究

摘要

3 mixtures of 6 agricultural chemicals were applied in the Kentucky bluegrass turf established 5 years ago. The result showed that every mixture was advantageous to the control of brown patch, the mixture of triadimefon and metalaxyl was the most effective, the mixture mamcozeb and thiophnate-methyl was effective in early stage of disease whereas the mixture of polyoxin and chlorothalonil in later stage.%选用代森锰锌、甲基托布津、多抗霉素、百菌清、三唑酮、甲霜灵等6种常用农药，组合成3种施药方案，在建植5年的草地早熟禾草坪进行了田间小区实验。实验表明：与未施药的对照相比，3种组合药剂都对褐斑病的发生有抑制作用，其中以三唑酮和甲霜灵混用的配方防治效果最明显，代森锰锌和甲基托布津混用的配方在发病前期效果较好而后期效果较差，多抗霉素和百菌清交替使用的配方直到发病后期才表现出较好的防治效果。