Determination of Fungal and Bacterial Diseases on Bean Plants in Bean Production Areas in Konya Province, Turkey
Bean (Phaseolus vulgaris L.) is a major crop that provides an important source of protein for human nutrition. In this study presence of plant pathogenic fungal and bacterial agents was determined in five mostly bean growing districts of Konya province in 2006. The surveys were carried out at seedlings, blooming and podmaturing phases of beans, and determined the average incidence of fungal diseases on three phases as 16.42%, 14.17% and 15.37% respectively. According to results, five fungal agents were identified as primary pathogens which were Fusarium equiseti, F. oxysporum f.sp. phaseoli, Macrophomina phaseolina, Rhizoctonia solani and F. solani f.sp. phaseoli on beans. In the three sampling phases and on majority at collected samples, Fusarium spp. were isolated at ratios 65.36%, 76.27% and 68.88% respectively. R. solani was determined to be the most virulent agent (77.78%) in all of the fungal pathogens by the pathogenicity tests. Pseudomonas savastonoi pv. phaseolicola was identified on collected bean samples and found incidence of disease as 11.59%.
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