Assessment of Asian soybean rust (Phakopsora pachyrhizi) disease severity in selected districts of Western Kenya

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Research Paper 01/08/2017
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Assessment of Asian soybean rust (Phakopsora pachyrhizi) disease severity in selected districts of Western Kenya

H. A. Ogot, S. A. Okoth, G. O. Obiero, J. M. Mahasi
Int. J. Agron. Agri. Res.11( 2), 50-53, August 2017.
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Soybean rust caused by the fungus Phakopsora pachyrhizi, is a major constraint to soybean production all over the world. The disease has significant impacts on the yield seed size and quality. The pathogen was reported in Kenya for the first time in 1996 and it is increasingly threatening soybean production, however no significant data has been collected on the level of infections in the soybean growing areas in Kenya. The disease severity was assessed in Khwisero, Butere, Mumias and Teso Districts of Western Kenya. The study revealed that the Soybean rust disease is prevalent in all the districts with the percent disease index (PDI) ranging from 40.37 to 74.8. There was no significant difference in the disease severity level in all the four district at p<0.05. The results of this study shows that more disease control measures needs to be applied to ensure that the farmers get maximum yields from the crops.


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