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研究了烟草细菌性青枯病的生物防治和化学防治相结合的方法。通过盆栽试验结果表明：产细菌素的烟草青枯细菌无致病力菌株抗链霉素突变体ｒＡ３－５和农用链霉素联合作用，对烟草青枯病防效最佳。先加致病菌再加拮抗菌和先加拮抗菌再加致病菌的防病效果分别为９３．８％和１００％，推迟发病期８天和３０天，而ｒＡ３－５和农用链霉素单一作用的防病效果分别为５６．３％、６５．３％和４１．７％、５８．４％。
The combination of biological control and chemical control of bacterial bacterial wilt was studied. The results of pot experiment showed that the bacteriocin-producing tobacco bacterial wilt bacteria had no antibacterial activity against streptomycin mutant rA3-5 and streptomycin, and had the best control effect on tobacco bacterial wilt. First add pathogenic bacteria plus antagonistic bacteria and first antagonistic bacteria plus pathogenic bacteria were 93.8% and 100%, delayed the onset of 8 days and 30 days, while the rA3-5 and Streptomyces The single effect of the disease control effect were 56.3%, 65.3% and 41.7%, 58.4%.