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针对大白菜软腐病危害重，防治效果不理想等问题。从病区健、病株作物根际上分离到１２６株细菌，通过菌株离体拮抗性能、菌株荧光反应、菌株处理后大白菜过氧化物酶活性以及对盆栽和田间小区大白菜软腐病的防治等试验，获得了Ｂ１１、Ｂ１２、Ｊ１Ｂ等３个较理想的生防菌株。其对软腐欧氏杆菌拮抗圈半径分别为１４．５ｍｍ、１２．５ｍｍ、１７．０ｍｍ；处理大白菜后过氧化物酶活性分别比对照增加３４．１０％、２４．１２％、１３．９３％；大田小区试验防效分别为５９．８％、５０．２％、３８．８％，产量分别比对照增加２８．５％、１８．６％、２５．７％。
In view of cabbage soft rot hazards, prevention and control of the effect is not ideal and so on. A total of 126 strains of bacteria were isolated from the rhizosphere of healthy and diseased plants in ward, and their antagonistic properties in vitro, fluorescence response of strains, peroxidase activity of Chinese cabbage after treatment of strains, Control and other tests, access to the B11, B12, J1B, etc. 3 more ideal biocontrol strains. The antagonistic radius of the strains against Coriolus europaera was 14.5mm, 12.5mm and 17.0mm, respectively. After treatment of Chinese cabbage, the peroxidase activities increased 34.10%, 24.12% and 13.93 % Respectively. The field control efficiency of Datian plot was 59.8%, 50.2% and 38.8% respectively, and the yield increased 28.5%, 18.6% and 25.7% respectively compared with the control.