Epidemics of chocolate spot (Botrytis fabae Sard.) disease on faba bean (Vicia faba L.) at Shambu and Guduru, Western Oromia, Ethiopia

Wakoya, Fikiru; Abdissa, Tola; Dugasa, Alemayehu

doi:10.1007/s42360-021-00328-0

Cited by 2 publications

(2 citation statements)

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“…Along with the conducive temperature and prolonged wet conditions of the area when the crop is at the vegetative stage, it can be made a good environmental condition for chocolate spot disease [10]. According to [22], more rainfall occurred in June, July, and August of the 2004 and 2005 cropping seasons, which may have delayed the onset of infection and may also have contributed to an earlier disease progression rate.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Sowing Dates and Fungicide Application on Chocolate Spot (Botrytis fabae Sard.) Disease of Faba Bean (Vicia faba L.) in Western Ethiopia

Dabalo

Wakoya

Merga

et al. 2023

Advances in Agriculture

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Faba bean (Vicia faba L.) is a cool legume crop grown in the highlands of Ethiopia, and chocolate spot disease (Botrytis fabae Sard.) occurs in wide areas. There is a shortage of recorded data about the impact of chocolate spot disease on faba beans and their management practices in Ethiopia. The objectives of this study were to assess the influence of sowing dates and the frequency of foliar fungicide (mancozeb) application for the management of chocolate spots and determine the association of sowing dates with chocolate spot disease occurrence. The experiment was conducted in the 2019 and 2020 growing seasons at two locations in Shambu and Guduru, western Oromia, Ethiopia. The mean disease severity, AUDPC, and grain yield were found to be statistically significant differences ( P < 0.05 ) among the treatments at both locations and years. A highly negative correlation of AUDPC with a grain yield was obtained for both locations and years. A high infection rate, disease severity, AUDPC, and low grain yield were recorded from the unsprayed treatment. Three applications of mancozeb spray on the first July sowing date have effectively reduced disease severity and significantly increased yield. However, cost-effective and environmentally eco-friendly disease management is an issue that has to be further investigated.

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Section: Discussionmentioning

confidence: 99%

“…In Ethiopia, long-term management of chocolate spot disease would likely require the adoption of resistant cultivars, fungicide use, biological control, and their combination with unique cultural practices including crop rotation and mixed cropping [9,10]. Te use of the sowing date is used for the management of chocolate spot disease.…”

Section: Introductionmentioning

confidence: 99%