40%嘧菌环胺悬浮剂的配方筛选及药效研究

通过对润湿分散剂、增稠剂、防冻剂、消泡剂等品种及用量的筛选,制备40%嘧菌环胺悬浮剂。最佳配方为嘧菌环胺40%、润湿分散剂RYD-981 3.5%、SP-SC2728 2%、SP-SC3 2%、防冻剂乙二醇4%、增稠剂硅酸镁铝1%、黄原胶0.1%、消泡剂0.3%,水补足至100%。该配方性能指标符合悬浮剂要求。田间药效试验表明,该悬浮剂对黄瓜灰霉病有较好的防治效果,配方粒径在一定范围内,防治效果随着粒径的缩小而提高。

Study on the Preparation and Efficacy of Cyprodinil 40%SC

The dosages and kinds of dispersants, thickeners, antifreezers, defoamers and other additives were screened to obtain cyprodinil 40% SC. The optimum formula was as follow, cyprodynil 40%, RYD-981 3.5%, SP-SC2728 2%, SP-SC3 2%, glycol 4%, magnesium aluminum siliacte 1%, xanthan gum 0.1%, defoamer 0.3%, and water added up to 100%. And it met the requirements of SC. The results of field efficacy trials showed that the SC provided good control effect on Botrytiscinerea, particle size of the formula within a certain range, the control effect improved gradually with the reduction of the particle size.