二化螟是新余市水稻上的一大主要害虫 ,近年来 ,第一、三代均偏重至重发 ,对早稻、二晚苗期为害较大。为明确农家乐、辛·三唑防治二化螟的效果 ,为大面积推广应用提供科学依据 ,我们于 2 0 0 1年 5-6月在早稻上进行了田间药效试验 ,现将结果报道如下 :1　试验条件试验设在渝水 Chilo suppressalis is one of the major pests on rice in Xinyu City. In recent years, the first and third generation are both heavily rerouted, and the damage to early rice and second late seedling is greater. In order to clarify the effect of farmhouse and synergistic effect of the synergistic effect of the synergistic effect of Sini Trimethoprim on Chilo suppressalis, we provide a scientific basis for large-scale popularization and application. We conducted a field trial on early rice from May to June 2001, and the results are reported as follows : 1 Test conditions Test in Yu Shui