Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents
Phaseolus vulgaris L. is considered one of the most essential legume crops in Kenya. Alternaria alternata is an economically significant plant pathogen that causes Alternaria leaf spot which accounts for over 70% yield losses of beans in Kenya. Chemical fungicides based on copper and sulfur are used...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Scientifica |
| Online Access: | http://dx.doi.org/10.1155/2024/3896663 |
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| author | Stella Karonji Nixon Odiwuor Odhiambo Joshua Kiilu Muli Julius Mugweru Romano Mwirichia |
| author_facet | Stella Karonji Nixon Odiwuor Odhiambo Joshua Kiilu Muli Julius Mugweru Romano Mwirichia |
| author_sort | Stella Karonji |
| collection | DOAJ |
| description | Phaseolus vulgaris L. is considered one of the most essential legume crops in Kenya. Alternaria alternata is an economically significant plant pathogen that causes Alternaria leaf spot which accounts for over 70% yield losses of beans in Kenya. Chemical fungicides based on copper and sulfur are used to control Alternaria leaf spot in bean plants, but their prolonged use has adversely affected the environment and the health of workers. Herein, we tested the biocontrol potential of bacterial agents from soil planted with Rosecoco bean plants infected with A. alternata. Using bacterial suspensions at different time intervals, we evaluated the putative bacterial biocontrol activity against A. alternata under greenhouse conditions. B. subtilis and B. velezensis bacterial biocontrol agents significantly suppressed disease severity by 20% and 21.2% on the 45th day, respectively. Our study demonstrates that B. subtilis and B. velezensis are promising biocontrol agents that could be integrated in the management of Alternaria leaf spot. |
| format | Article |
| id | doaj-art-1d6d91e52f924a4c9a2c3ebd693371f9 |
| institution | OA Journals |
| issn | 2090-908X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Scientifica |
| spelling | doaj-art-1d6d91e52f924a4c9a2c3ebd693371f92025-08-20T02:01:40ZengWileyScientifica2090-908X2024-01-01202410.1155/2024/3896663Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological AgentsStella Karonji0Nixon Odiwuor Odhiambo1Joshua Kiilu Muli2Julius Mugweru3Romano Mwirichia4Department of Biological SciencesDepartment of Biological SciencesDepartment of Biological SciencesDepartment of Biological SciencesDepartment of Biological SciencesPhaseolus vulgaris L. is considered one of the most essential legume crops in Kenya. Alternaria alternata is an economically significant plant pathogen that causes Alternaria leaf spot which accounts for over 70% yield losses of beans in Kenya. Chemical fungicides based on copper and sulfur are used to control Alternaria leaf spot in bean plants, but their prolonged use has adversely affected the environment and the health of workers. Herein, we tested the biocontrol potential of bacterial agents from soil planted with Rosecoco bean plants infected with A. alternata. Using bacterial suspensions at different time intervals, we evaluated the putative bacterial biocontrol activity against A. alternata under greenhouse conditions. B. subtilis and B. velezensis bacterial biocontrol agents significantly suppressed disease severity by 20% and 21.2% on the 45th day, respectively. Our study demonstrates that B. subtilis and B. velezensis are promising biocontrol agents that could be integrated in the management of Alternaria leaf spot.http://dx.doi.org/10.1155/2024/3896663 |
| spellingShingle | Stella Karonji Nixon Odiwuor Odhiambo Joshua Kiilu Muli Julius Mugweru Romano Mwirichia Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents Scientifica |
| title | Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents |
| title_full | Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents |
| title_fullStr | Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents |
| title_full_unstemmed | Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents |
| title_short | Control of Alternaria Leaf Spot of the Common Bean (Phaseolus vulgaris L.) Using Soil-Derived Biological Agents |
| title_sort | control of alternaria leaf spot of the common bean phaseolus vulgaris l using soil derived biological agents |
| url | http://dx.doi.org/10.1155/2024/3896663 |
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