本工作的试验结果表明杀螟腈是一种残效期短、基本上不污染稻株的低毒农药。它在田间自然环境条件下受外界气候环境影响,分解消失较快,特别是雨水冲刷更使它在水稻上的残留量剧降。但在室内控制条件下分解稍为缓慢。 田间药效试验指出,杀螟腈防治纵卷叶螟虽效果显著,但由于残效短,施药必需与害虫的发生关键时期紧密配合。 The test results of this work show that diethylcarbamycin is a low toxic pesticide which has a short residual period and does not substantially pollute rice plants. Under natural environmental conditions in the field, it is affected by the external climate and environment, and its decomposition disappears rapidly. In particular, the erosion caused by rainwater drastically reduces its residue on rice. However, decomposition is slightly slower under controlled indoor conditions. Field efficacy trials pointed out that the prevention and control of diethylcarbamydrolone is significant effect, but due to short residual effect, pesticide application must be closely linked with the pest occurrence of the critical period.