中文摘要：

【目的】评估1％申嗪霉素悬浮剂与40％咪鲜胺水乳剂混配对小麦赤霉病菌的增效作用，并进行田间防治试验。【方法】以1％申嗪霉素悬浮剂和40％咪鲜胺水乳剂的单剂对小麦赤霉病菌EC。为基础剂量，分别按照7：1、5：1、3：1、1：1、1：3、1：5、1：7比例进行混配，采用共毒系数法验证其增效作用，并通过田间试验验证其增效作用。【结果】申嗪霉素与咪鲜胺在7：1~1：5范围内混配，有明显的增效作用，当混配比例为5：1时，共毒系数CTC最大为262．28。将2种制剂进行桶混，按照每h矗使用1％申嗪霉素悬浮剂820g与40％咪鲜胺水乳剂55g桶混，对水675L喷雾处理14d后，对小麦赤霉病，的防效为84．65％，显著高于单剂防效。[结论】申嗪霉素与咪鲜胺2种制剂混配应用于防治小麦赤霉病，具有明显的增效作用。

英文摘要：

[Aims] The aim of this study is to evaluate synergistic effect of the mixture of shenqinmycin 1% SC and prochloraz 40% EW on Fusarium gramineannn and to conduct a field trial. [Methods] Shenqinmycin and prochloraz were further mixed with different proportion of 7 ： 1, 5 ： 1, 3 ： 1, 1 ： 1, 1 ： 3, 1 ： 5, 1 ： 7, etc based on EC50 dose. The mixture proportion was validated for its synergistic effect by CTC method. The synergistic effect was verified by field trials. [Results] The results showed that the proportions of shenqinmycin and prochloraz between 7 ： 1 to 1 ： 5 based on each ECs0 dose had synergistic effects. When the mixed proportion of shenqinmycin and prochloraz was 5 ： 1, the maximum CTC value was 262.28. The field trial results showed that shenqiumycin 1% SC 820 g/ha mixed with prochloraz 40% EW 55 g/ha, and sprayed with 675 L/ha water, on 14 days after treatment, the control efficacy was 84.65%, which was higher than that of the single preparations. [Conclusions] The mixtures of shenqinmycin 1% SC and prochoraz 40% EW showed obvious synergistic effect on Fusarium graminearum.