Bacillus subtilis is the most intensively studied Bacillus species to date. Its use in controlling plant diseases has become a hot topic in biocontrol research, with numerous reports both domestically and internationally.
Reported strains isolated from crop rhizosphere soil, root surfaces, plants, and leaves have shown efficacy against fungal and bacterial diseases of various plants, including rice sheath blight, rice blast, wheat sheath blight, legume root rot, rice neck blast, and wheat take-all disease in grain crops, and tomato leaf blight, cucumber wilt, cucumber downy mildew, eggplant gray mold, eggplant powdery mildew, pepper blight, and tomato sheath blight in vegetables. Bacillus subtilis can also control various post-harvest fruit diseases, including apple core mold, nectarine brown rot, citrus penicillium, strawberry gray mold, strawberry powdery mildew, banana wilt, banana crown rot, banana anthracnose, apple and pear penicillium, apple and pear black spot, apple and pear canker, and golden pear fruit rot. In addition, Bacillus subtilis also has a good preventive and control effect on poplar canker, rot, black spot and anthracnose, tea ring spot, tobacco anthracnose, black shank, root rot and cotton damping-off.
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