Effectiveness of selected disinfectants in the control of pathogenic bacteria Pseudomonas tolaasii Skuteczność wybranych preparatów dezynfekcyjnych w zwalczaniu patogenicznej bakterii Pseudomonas tolaasii

Abstract

Summary Effectiveness of disinfectants in the control of Pseudomonas tolaasii causing brown blotch of white button mushroom Agaricus bisporus was examined. The sensitivity of the pathogenic bacteria to four disinfectants characterized by different chemical composition, i.e. chloride dioxide, hydrogen peroxide and quaternary ammonium compounds, was assessed. Two disinfection methods: spray and dipping were used. Moreover, the efficiency of antibacterial commercial agents for the control of brown blotch in crop was investigated. The tested disinfectants revealed a high effectiveness in controlling bacteria. The method of disinfection influenced the values of antibacterial concentration. The agents containing hydrogen peroxide as well as quaternary ammonium compounds were more effective, when applied by the dipping method than by the spray method. Commercial agent consisting of sodium hypochlorite were the most efficient in the control of brown blotch in the mushroom crop. Hydrogen peroxide provided the lowest efficiency.