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从小麦叶片和穗部分离、筛选出对小麦赤霉病菌（Ｆｕｓａｒｉｕｍｇｒａｍｉｎｅａｒｕｍ）有很强拮抗作用的芽孢杆菌菌株Ｂ４、Ｂ６，经室内离体叶、穗防效测定和田间小区防效试验，二菌株对小麦赤霉病有较好防效，与清水对照相比，相对防效达６８４％、６８９％，接近多菌灵的防效（７０４％）。对Ｂ４、Ｂ６菌株进行形态和生理生化特征的分类鉴定，二菌株均为枯草芽孢菌（Ｂａｃｉｌｕｓｓｕｂｔｉｌｉｓ）
Bacillus strains B4 and B6 were screened out from the leaves and ears of wheat to screen out the antagonistic effect of Fusariumgraminearum. Compared with fresh water control, the relative control efficiency was 684% and 689%, which was close to the control effect of carbendazim (704%). The strains B4 and B6 were identified by their morphological and physiological characteristics. The two strains were Bacillus subtilis