Comparative Study of Biological Control Agents Against Common Bacterial Blight Disease in Dry Beans
Abstract
Bean (Phaseolus vulgaris) is a widely grown crop with high nutritional and commercial value that is a staple on several continents. However, common bacterial blight (CBB), which is caused by Xanthomonas axonopodis pv. phaseoli is one of the most critical seed-borne destructive diseases of beans, having a major adverse effect on dry bean production, resulting in yield and quality losses. This study was conducted to examine the efficacy of biological control agents and a copper-based treatment in managing CBB under in vitro and in planta controlled conditions. In this study, various bacterial treatments, including Bacillus subtilis (Bs), Pseudomonas fluorescens (Pf), and a mixed treatment (Bs+Pf), were tested and compared to copper hydroxide (Ch), streptomycin, and control treatments. Disease incidence, disease severity index, and plant growth parameters such as plant height, number of leaves, root length, and weight, were evaluated to determine the effectiveness of each treatment. According to the results, there was a significant difference among treatments (P≤0.01), as Bs demonstrated efficient in vitro inhibition (34.00 mm), while streptomycin inhibited 21.33 mm. Additionally, Bs achieved 71.50% disease control in the in planta study. In the in planta study, the mixed treatment of Bs+Pf was the most significant among all treatments, reducing CBB to 10.33% and controlling the disease by 83.94%. Additionally, it inhibited the pathogen in vitro with a zone of inhibition…
Read the paper
Related studies
- Understanding the factors influencing fall armyworm (Spodoptera frugiperda J.E. Smith) damage in African smallholder maize fields and quantifying its impact on yield. A case study in Eastern Zimbabwe
- Alarming situation of emerging H5 and H7 avian influenza and effective control strategies
- Livestock and food security: vulnerability to population growth and climate change
- Atmosphere–ocean oxygen and productivity dynamics during early animal radiations
- Characterization of the global distribution and diversified plasmid reservoirs of the colistin resistance gene mcr-9
- The global seroprevalence of Toxoplasma gondii in pigs: A systematic review and meta-analysis
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.