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[目的]配制28%百菌清.唑菌酯悬浮剂,以得到更广泛的应用。[方法]通过对阴离子和非离子表面活性剂复配体系的筛选,确定了28%百菌清.唑菌酯(SYP-3343)悬浮剂优惠配方。[结果]优惠配方组成:百菌清21.0%,唑菌酯7.0%,NNO 2.0%,D425 3.0%,0201B 5.0%,1601 1.0%,黄原胶0.1%,白炭黑0.1%,乙二醇4.0%,水补足至100%。[结论]该制剂对黄瓜霜霉病具有良好的防效,EC90值13.72 mg/L,持效期6 d。各项指标均符合悬浮剂的要求,具有良好的开发前景。
[Objective] To prepare 28% Chlorothalonil suspension and dispersant to get a wider application. [Method] The optimum formulation of 28% chlorothalonil (SYP-3343) suspending agent was determined through the screening of compound system of anionic and nonionic surfactant. [Result] The preferential formulation consisted of 21.0% chlorothalonil, 7.0% pyraclostrobin, 2.0% NNO, 3.0% D425, 5.0%, 0201B, 1601 1.0%, xanthan gum 0.1%, white carbon black 0.1%, ethylene glycol 4.0%, water make up to 100%. [Conclusion] The preparation had good control effect on downy mildew of cucumber with EC90 value of 13.72 mg / L and persistence of 6 d. The indicators are in line with the requirements of SC, has a good development prospects.