The damping-off phenomenon often occurs in the pepper substrate seedling-raising process, which results in a large loss. And we found the pathogen of the disease was Phytophthora capsici. In order to contol the pepper blight, we carried out the efficacy test of three bio-control agents against P. capsici, by taking dimethomorph produced by Germany BASF Chemical Company as the positive control. The results showed that the AR156 -2 (BBS mixture) with the concentration of 108 cfu/mL possessed the highest control efficiency of 79.5%, which was significantly higher than that of dimethomorph (57.2%), and the AR156-2 treatment's growth-promoting efficiency of pepper seedlings was 35.27% , showing good application prospects.% 辣椒基质育苗过程中常发生猝倒现象，造成大量死苗，损失较重.经鉴定，该病是由病原菌 Phytophthora capsici 引起的辣椒疫病.为防控该病，我们选用3种生防菌剂进行了辣椒疫病防效试验，并以德国巴斯夫公司生产的安克为阳性对照.试验结果表明，浓度为1×108 cfu/mL 的 AR156-2(BBS 合剂)的防效达79.5%，显著高于安克57.2%的防效，同时其对辣椒苗促生效果达35.27%，显示了良好的应用前景.
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