Perspectives on the use of bacteria in the protection of apple and pear against fire blight {Erwinia omylovoro)

摘要

Protection of plants against fire blight (FB) caused by Erwinia amylovora includes the integration of various methods aimed at preventing their infection and elimination of FB disease. Copper containing plant protection products are the only compoundsregistered in Poland. However, various limitations associated with use of these pesticides increased interest in application of alternative methods, including antagonistic bacteria, which occur in natural conditions and have ability to protect plants from FB. The studies in various countries have demonstrated that the species Pantoea agglomerans and Pseudomonas fluorescens, as well as Bacillus subtilis and Lactobacillus plantarum are the most effective. The commercialy available bioproducts are based on the first three species. They are mainly used in apple and pear production at blooming period and in programs integrated with chemical pesticides. The results of the research conducted in Poland provide the basis for the development of a biopreparat containing one of the two prospective strains: 48M (Pantoea agglomerans) and 59M (Pseudomonas protegens).