大豆锈病对产量的影响很大。用试验结果进行回归分析，产量与病情指数的关系为ｙ＝１５８．７３４６－０．８６５２ｘ。药剂防治试验，２５％粉锈宁、７５％百菌清和５８％甲霜灵对大豆锈病病原菌孢子萌发和夏孢子堆产生均有显著的抑制作用。田间施药以２５％粉锈宁１２５ｐｐｍ喷三次的防效和产量最高，百菌清和甲霜灵的效果较差。 Soybean rust has a big impact on the yield. Regression analysis with the test results, the relationship between yield and disease index y = 158.7346-0.8652x. The pesticide control experiment, 25% triadimefon, 75% chlorothalonil and 58% metalaxyl significantly inhibited the spore germination and the production of summer spores of soybean rust pathogens. Field spraying with 25% triadimefon 125ppm spraying three times the highest control effect and yield, chlorothalonil and metalaxyl less effective.