Journal of the Korean Society of Tobacco Science (한국연초학회지)

The Korean Society of Tobacco Science (한국연초학회)
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Chemicals for the Control of Streptomycin-resistant Tobacco Hollow Stalk Pathogen, Erwinia carotouora subsp. carotovora

Streptomycin 내성 담배줄기속썩음병균 방제약제 선발

  • 강여규 (한국인삼연초연구원 수원시험장)
  • Published : 1996.06.01
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Abstract

Chemicals including antibiotics and bactericides were screened for suppression of streptomycin-resistant Erwinia cmutouom subsp. cmutovom (Ecc) strains in laboratory and field conditions. Oxytetracycline, ethoquinolac and dichlorophen suppressed the growth of streptomycin-resistant Ecc strains in vitro. Fractional inhibitory concentration (FIC) indices of oxytetracycline and ethoquinolac mixed with streptomycin against the Ecc strains were equal to and less than one, respectively. Consequently the efficacy of those chemicals in mixture with sorptomycin were non-antagonistic But that of dichlorophen mixed with streptomycin was more than one, therefore the efficacy of the mixture was antagonistic. Spray of oxyteoucycline, ethoquinolac and agrimycin-100 on the topped burley tobacco plants was efficacious in reducing tobacco hollow stalk at the same level of sorptomycin treatment in three-year field trials, which suggests that those are promising chemicals to be alternative to streptomycin for control of tobacco hollow stalk.

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References

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