P-ISSN: 2789-3065, E-ISSN: 2789-3073
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2022, Vol. 2, Issue 2, Part A

Assessment of Maize grey leaf spot (Cercospora zeaemaydis Tehon and Daniels) in a main Maize producing part of Western Oromia, Ethiopia


Author(s): Debela Diro and Fikre Lemessa

Abstract: Grey leaf spot (GLS) is one of the fungal diseases caused by Cercospora zeae-maydis; it is a necrotrophic and polycyclic foliar disease of maize that poses a severe challenge in tropical maize production. This study was designed to determine the prevalence and intensity of maize grey leaf spot (GLS) and how maize varieties under production in the surveyed area reacted to GLS. A total of 81 farmer's fields in 9 districts from 3 zones were surveyed when the crop was in the flowering to grain filling stage. The global positioning system (GPS) was used to mark each sampling site using a GPS receiver for altitude and co-ordinates. Using meter tap, 9m2 areas in each field were marked out in three randomly selected points in a diagonal form. Purposive multistage sampling method was used and data were analyzed using three-stage nested design. The survey's findings revealed that, although to various degrees, GLS was prevalent in each district. While the mean GLS incidence ranged from 15% in Ababo Guduru to 76.67% in Digga district, the mean percent severity index differed between 12.50% and 46.06% between these two districts. The findings suggested that it need to develop management strategies like crop rotation with non-host, balanced fertilizer utilization and use of tolerant varieties to minimize the negative impact of the disease on maize production

Pages: 09-18 | Views: 989 | Downloads: 689

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International Journal of Plant Pathology and Microbiology
How to cite this article:
Debela Diro, Fikre Lemessa. Assessment of Maize grey leaf spot (Cercospora zeaemaydis Tehon and Daniels) in a main Maize producing part of Western Oromia, Ethiopia. Int J Plant Pathol Microbiol 2022;2(2):09-18.
International Journal of Plant Pathology and Microbiology
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